Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, via Bassini 15, 20133, Milano, Italy.

Size: px
Start display at page:

Download "Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, via Bassini 15, 20133, Milano, Italy."

Transcription

1 RAIS: a real time strong-motion network in Northern Italy Paolo Augliera (1), Marco Massa (1), Ezio D Alema (2) and Simone Marzorati (2) (1) Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, via Bassini 15, 20133, Milano, Italy. (2) Istituto Nazionale di Geofisica e Vulcanologia, Centro Nazionale Terremoti, c/o strada Cameranense 1, 60131, Passo Varano (Ancona), Italy. Subject classification: Surveys, measurements, and monitoring Key words : Measurements and monitoring, strong motion network, data acquisition system, data processing, North Italy Corresponding author: Paolo Augliera, Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, via Bassini, 15, Milano, Italy: 1

2 Abstract When compared to more seismically active regions, damaging earthquakes appear occasionally in the central part of Northern Italy. Nevertheless, the lack of a dense strongmotion network in this area was highlighted by the occurrence of the 24 th November 2004, M L 5.2, Salò earthquake. Since 2006, the INGV (Italian National Institute for Geophysics and Volcanology) department of Milano-Pavia (hereinafter INGV MI), begun the installation of new strong motion stations in Central- Northern Italy. At present the RAIS (Strong-Motion Network in Northern Italy) includes 22 stations with an average inter-distance of about 20 km. All stations are equipped with Kinemetrics FBA ES-T coupled with 24-bits digital recorders. Starting from 2009, 14 strong-motion stations send data to the INGV acquisition center of Milan in real time using TCP/IP over Wi- Fi links. Another 8 stations still work in dial-up mode and send data through GSM modems. The real time connection allow to use strong motion data recorded by RAIS for generation of the ShakeMaps for Italy, the implementation of which represented one of the main task of the last agreement between INGV and Italian Civil Protection (DPC). The RAIS data storage, directly performed at INGV MI, is realized by using the MiniSEED format; the data management and exchange are realized by the SeisComP package with the SeedLink protocol. The metadata dissemination is achieved through the website where the strong motion parameters related to each recorded and processed waveforms are available. Introduction Strong-motion monitoring in Italy started in the early 70 s, when a national strong motion network was designed and installed by ENEA (Italian energy and environment organization) and ENEL (Italian electricity company). Since 1997 the Italian strong motion network (Rete Accelerometrica Nazionale, RAN) is run by the Italian civil protection (DPC). In spite of the relevant number of RAN stations (at present about 250 digital stations and 120 analogue stations, they do not homogeneously cover the Italian territory. In 2

3 particular the great number of stations are installed in the areas characterized by a high level of seismicity, such as the central and southern Apennines, the Friuli and Sicily regions. This problem was pointed up after the occurrence of the 24 th November 2004, M L 5.2 (Mw 5.0) Salò earthquake (Augliera et al., 2006). This event was one of the strongest earthquake that shocked the Northern Italy region in the last 30 years. On the basis of the official data provided by the Lombardia Region authorities, this earthquake, felt in Northern Italy, strongly affected about 70 municipalities close to the epicentral area, damaging about 3500 buildings and 300 churches, for an approximate damage evaluation of 200 million euros. In the epicentral area only the Gavardo analogue strong-motion station (GVD, see triggered (on the S-phase) during the mainshock. The peak ground horizontal acceleration, recorded at an epicentral distance of 14 km, was 71 cm/s 2. Due to the lack of others strong-motion stations installed in the surroundings of the epicenter, no data were available for distances lower than 90 km. With the aim to assure high quality nearsource recordings in the case of future earthquakes in Northern Italy, since June 2006, the INGV MI started up with the installation of a dense strong-motion network (RAIS, in Italian Rete Accelerometrica in Italia Settentrionale, in the area surroundings the 24 th November 2004 epicenter (Figure 1). Even if Northern-Central Italy is a region characterized by low seismicity (concerning both the energy release and the occurrence of the events) the importance and the necessity of the strong-motion monitoring in this areas is demonstrated by the occurrence of some relevant historical earthquakes (Figure 2, bottom panel), such as the 1117 Mw 6.49 Verona earthquake, the 1222 Mw 6.05 Brescia earthquake, the 1695 Mw 6.61 Asolo earthquake and the more recent 1901 Mw 5.67 Salò earthquake (CPTI04 catalogue, Gruppo di lavoro CPTI 2004). At present, after 4 years of recordings, the data storage performed at the acquisition center of Milan, allow us to collect a high-quality dataset (Figure 2 top panel) composed by 103 events (about components waveforms) with M L ranging from 0.7 to 5.1 (the 23 th December 2008 Parma earthquake). 3

4 This paper is focused on the RAIS technological upgrade performed in the last two years. The first phase of installations, the main features of the first-generation RAIS network (mainly based on a dial-up transmission system) and the detection capability were already described in a previous paper (Augliera et al. 2009). In this paper the last developments and the actual configuration of the network are presented, with particular attention on site selection, acquisition system and data transmission. The final section of the paper is focused on data processing and real-time dissemination, in particular with the aim to improve the generation of ShakeMaps for events occurred in Northern Italy. Site selection and its characterization RAIS arose in the framework of the INGV-DPC agreement. The first installation were founded by the project Stazioni Accelerometriche (in English Strong-Motion stations, while the further developments were made thank to the last INGV-DPC S3 project Fast evaluation of the parameters and effect of strong earthquake in Italy and in the Mediterranean areas. At the beginning, two of the main goals of the Stazioni Accelerometriche project were to improve the earthquake detection in the area of North-Central Italy and to assure a tool for strong-motion monitoring able to provide highquality records in the case of strong events. The first phase of the mentioned project concerned the selection of sites suitable for seismic installations. In this way three main aspects were considered: the locations of the seismic stations managed by other organizations (Figure 3), in order to avoid too high or too low density of stations (both weak and strong-motion) in correspondence of a particular area, the location of instrumental seismicity recorded in the region under study from 1981 (http://bollettinosismico.rm.ingv.it/ and and the municipality of the area characterized by the highest values of seismic hazard (Gruppo di Lavoro MPS04, expressed in term of maximum peak ground horizontal acceleration with a 10% of probability to be exceeded in the next 50 years (return period of 475 years). 4

5 In Figure 3 only RAIS and national network are reported, but others local and regional networks operated in this area has been considered, for example RAF (Friuli Venezia Giulia Accelerometric Network), the short-period seismometric regional networks of Friuli Venezia Giulia (RSFVG) and of Veneto (RSV) managed by Centro di Ricerche Sismologiche of the OGS, the Regional Seismic Network of Northwestern Italy (managed by Dip.Te.Ris., Genoa University). For each considered site, the final selection represented generally a compromise between the network geometry, which depends on the monitoring purposes, and the characteristics that a given site presents in order to be suitable for an installation. Considering the high degree of urbanization and industrialization in the considered area, all installations were preceded by microtremors analysis (Nakamura 1989). Taking into account that a low level of noise (Peterson, 1993) is difficult to achieve in this area, the measures was in particular carried out with the aim to avoid very unfavourable situations. For each site quick horizontal to vertical spectral ratio (HVSR) and additional probability density functions (McNamara and Buland 2004) were computed by following the procedure presented in Marzorati and Bindi (2006). Concerning the processing of the seismic noise, time series with a duration of at least 30 minutes, recorded with a broad band sensor (sampling frequency 100 Hz), were considered. The time series were divided into segments of 60 seconds with an overlapping of 75% in order to reduce the variance in the power spectral densities (PSD) computation. For each window of noise the mean and the linear trend were removed and a digital Butterworth filter, in the frequency range Hz, were applied. At present all site where a RAIS station is installed are characterized both from a geological (http://rais.mi.ingv.it, link caratterizzazione siti ) and a geophysical point of view. Concerning geology, all information come from 1: geological maps provided by Lombardia region (CARG project, 2003) or 1: Italian geological maps (SGI, 1984). From a geophysical point of view, for each site an averaged horizontal to vertical spectral ratio is available considering the earthquake recordings from June

6 For each recorded waveform an automatic procedure allow to update step by step the actual averaged amplification function calculated for a single site. The processing of the recorded strong-motion data (sampling frequency of 100 Hz) included the following steps: removal of the mean and linear trends, 5% cosine tapering, application of an acasual 4-pole Butterworth band-pass filter between 0.2 Hz and 25 Hz. For each event, the Fourier spectra were computed considering different time windows (5 s and 10 s starting 0.5 s before the S-phase onset). To investigate the differences between differently polarized horizontal components, directional spectral ratios were obtained by applying different rotation angles. In particular, for computing directional spectral ratios, the NS and EW components were rotated clockwise from the North, by between 0 and 175, in angular steps of 5, which provided for computation of 36 rotated components, which were representative of 36 directions of horizontal ground shaking. A resume of the products available for each site is presented in figure 4 for the Vobarno station (VOBA in table 1). Finally, taking into account both the geological and geophysical remarks, all stations were classified following the provision of the Italian seismic code for building (NTC 2008). Instrumentation and installation At present the RAIS network is composed by 22 stations (table 1): the strong motion sensors are s FBA ES-T (http//:www.kinemetrics.com) characterized by a dynamic range of 155 db. Generally the full-scale is set to ±2.0 g. In figure 5 is shown a typical frame of installation. In each site the accelerometer is housed in ad-hoc built concrete basement and anchored to it (top right panel). Close to the concrete basement a plastic-box, with dimension of about 100 cm long, 80 cm width and 50 cm high is located. As shown in figure 5 (bottom left panel) the box contains the digital recorder (the GAIA-2 recorder in this picture), a router for data transmission (TCP/IP protocol) and a stabilized power supply connected to a 12V battery in order to avoid possible lacking of electricity. 6

7 The time synchronization of the recorded signal is assured by a GPS antenna installed near the station. At present the network is characterized by 2 different type of digital recorders: 11 strong-motion sensors are coupled with 24 bits Reftek digital recorder ( while the other 11 sensors are coupled with 24 bits GAIA-2 (Rao et al. 2010). This type of digital recorder was designed and produced directly by the laboratory of INGV-CNT (http://cnt.rm.ingv.it). At present all stations record signals in-continuous-mode with a sampling frequency of 100 Hz. Acquisition system and data transmission: a brief history and the present Since June 2006 until the end of the 2008, the installed s were equipped with 20 bits Lennartz Mars88 Modem Control (http://www.lennartz-electronic.de/) or 24 bits Reftek 130 digital recorders. In both cases the remote stations transmitted data to INGV MI acquisition center GSM modems (D Alema and Marzorati 2004; D Alema 2007). The GSM (Global System for Mobile communication) data transmission did not allow real-time determinations of the engineering parameters that actually represents one of the main goal for a strong-motion network. The GSM data transmission represented in the first period a relevant technological limitation, that forced the on-line data dissemination to have a time-delay of the order of hours. In the framework of the recent INGV-DCP S3 project, many efforts were made to replace the highest possible number of GSM stations with a system able to record data in continuous mode and at the same time to transmit data in real-time. This important evolution of the network started at the beginning of the 2009 and led to the replacement of the Mars88 Modem Control digital recorder (without a TCP/IP support and thereby not suitable to transmit data in continuous mode) with 24 bits digital recorders. At the same time a contemporary phase (at present still in progress) that led the replacement of the GSM technology with TCP-IP connections started. At present 14 stations on a total of 22 are connected to the acquisition center of Milano in real-time. 11 of this 14 stations are now equipped with the GAIA2 digital recorders, while 7

8 other three are equipped with Reftek-130 digital recorders. The other eight, are still dial-up stations and send data via GSM modem. For the management of the real time stations the SeedLink protocol is adopted. The format of the recorded data (previously recorded both in binary Reftek or Lennartz format and then stored in sac format) was upgraded introducing the MiniSEED format. We use the SeedLink system for real time communication using TCP/IP protocol and a SeisComP platform (Hanka et al 2000) for monitor plotting and disk recording. For data acquisition a procedure for events detection was developed. The locations are provided by the Italian National Earthquake Center (INGV-CNT, In our case a new event location represents a warning for RAIS data acquisition and consequently the trigger for the fully automatic system. In particular every five minutes the file of event locations (revised by the seismologist which is in charge for the seismic surveillance activity in Rome) is automatically downloaded. Every time a new event is present, the theoretic spectral amplitude of the earthquake is compared (in a fixed frequency band) with the average noise levels for each station of the network. The synthetic spectrum is computed by considering the omega-square source model (Brune 1970) and the source spectrum is propagated to each station considering the 1/R geometrical spreading term. In this case some bias (however negligible considering our scope) could be introduced by the not correspondence between moment (on which the theoretical scheme is based) and local (recorded) magnitude. The procedure is however conservative (Augliera et al., 2009). At the end of the procedure, if the theoretical signal to noise ratio exceed a fixed threshold for al least 3 stations, the INGV-CNT event-id is stored and the procedure for the RAIS data automatic download is going to start. The event-id represents a necessary information in order to merge in a consistent way the data previously processed by different seismic network and then sent to the common server of INGV-CNT. 8

9 At the end of the process the RAIS waveforms are available in our acquisition center and ready to be processed by the automatic system. A resume of the procedure is shown in the flow-chart of figure 6. Data processing and dissemination At the end of the acquisition system the RAIS data are available in the workstation of the acquisition center of Milan. The last step is represented by the data processing and their dissemination. The analyses on recorded data are automatically made using a series of code, expressly developed both in fortran77 and C languages and in bash-shell. Each strong-motion waveform is processed using a standard procedure described in Massa et al. (2009) that include the baseline correction, performed by a least square regression, the mean removal considering the whole signal, the application of a cosine-taper function (usually 5%) and a filtering performed by an acasual 4 th order Butterworth digital filter ( Hz). For all processed waveforms PGA (peak ground acceleration) and SA (acceleration response spectra, 5% damped) for periods up to 4 s were calculated. Moreover the automatic system provide also PSV (pseudo-velocity response spectra), Sd (displacement response spectra), IA (Arias Intensity; Arias 1970) and IH (Housner intensity; Housner 1952) values. Finally, after the integration of acceleration time series, also the peak ground velocity (PGV) is evaluated. Concerning the site response, as discussed in a previous paragraph, for each recorded event at each site, the EHVSR (Earthquake Horizontal to Vertical Spectral Ratio) is calculated considering both 5 s and 10 s of S phase. The metadata are collected in the web site of the RAIS network that is while all waveforms related to each event with M L equal or higher than 2.5 are included in the ITalian ACcelerometric Archive (ITACA) and downloadable at the web site Moreover, since 2009, for each event with M L higher or equal than 3.0, PGA, PGV and SA values (for periods of 0.3 s, 1.0 s and 3.0 s) are sent to INGV-CNT acquisition center, where they are merged together all available strong-motion and velocimetric data in order to improve the calculation 9

10 of ShakeMaps (http://earthquake.rm.ingv.it/shakemap/shake/) for events occurred in Northern Italy RAIS data set In the period June 2006-June 2010 the RAIS network allowed us to collect a relevant data set, at least in term of number of earthquakes for this area with a low seismicity level. In the considered period 103 events (for a total of about component waveforms) with M L ranging from 0.7 to 5.1 were recorded in the epicentral distance range km (Figure 7). Concerning the magnitude, the most relevant earthquake was recorded on 23 th December 2008 at UTC (M L 5.1, Parma earthquake, 2008/HTML/main.html). Concerning the acceleration, the earthquake that produced the highest recorded peak was the 14 th July 2008 M L 3.5 Salò event. This relatively weak event was able to produce at Vobarno station (VOBA, see table 1), located about 5 km West of the epicenter, a horizontal acceleration peak of 33 cm/s 2. In general, as shown in figure 7 (left top panel), the highest number of recorded events are included in the magnitude range In this interval the records homogeneously cover the hypocentral distance range between 10 and 200 km. For magnitude between 0.7 (the minimum recorded value) and 2.5 the hypocentral distances range between 50 and 75 km. The same consideration is made if the right panel of figure 7 is considered. In particular in the right bottom panel, where PGA versus hypocentral distance is shown for events with M L higher or equal than 3.0, it is possible to observe the presence of anomalous peaks for hypocentral distances closed around 100 km. This phenomenon is due, as demonstrated in Castro et al. (2008) and Bragato et al. (2009) to the not negligible contribution of the Moho reflection in the areas located in the East region of the Po Plain. However it is not possible to exclude also the contribution of local site effects for stations located in B and C (see table 1) lithological classes as described in the Italian seismic code for building (NTC 2008). 10

11 To strengthen the benefit produced by the RAIS network on the strong-motion monitoring of the area under study, in Augliera et al. (2009) a theoretical example was made considering some of the strongest historical events (CPTI04 catalogue, Gruppo di Lavoro CPTI 2004) occurred in the Northern Italy regions (Figure 2, bottom panel). In the case of a "reoccurrence", the 12 th May 1802 Maw 5.67 Oglio Valley earthquake (maximum macroseismic Intensity, Imax of VIII-IX MCS degrees, yellow square in the bottom panel of figure 2) currently would have been recorded by 5 strong-motion stations (4 belonging to RAIS) in the first 30 km. Similarly, the 7 th June 1891 Maw 5.71 Illasi Valley earthquake (Imax IX MCS, red square in the bottom panel of figure 2) and the 19 th February 1932 Maw 5.01 Mount Baldo earthquake (Imax VIII MCS, green square in the bottom panel of figure 2) would have nonsaturated data from 7 stations (6 belonging to RAIS) and 12 stations (7 belonging to RAIS) for epicentral distances less than 30 km, respectively (for more detailed explanation see Augliera et al., 2009). In particular, considering a hypothetical doublet of the 24 th November 2004 M L 5.2 Salò event (blue star in bottom panel of figure 2), it is possible to suppose that a similar event would be actually recorded by 11 strong-motion stations (6 belonging to RAIS) in the first 30 km. ShakeMap implementation at RAIS ShakeMaps are a very useful tool in the first minutes to hours after an earthquake has occurred, but their relevance progressively decreases as information about actual damage becomes available. For this reason it is fundamental to have data in real-time. At INGV MI we have installed the ShakeMap package, developed by the U.S. Geological Survey (USGS) Earthquake Hazards Program (Wald et al 2006) and we use this tool in agreement with the procedures developed by INGV-CNT for the ShakeMap implementation in Italy (Michelini et al. 2008). A dense and uniform spatial distribution of stations in the field is essential to produce reliable ShakeMaps (Douglas, 2007; Moratto et al. 2009) minimizing the uncertainties associated with ground motion prediction equations (Wald et al. 2008). In order to appreciate the role of the RAIS stations in the calculation of Shakemap, an 11

12 example is reported in figure 8 for the 14th July 2008 ML 3.5 earthquake, occurred near Salò. In Figure 8a is reported the Shakemap in term of instrumental intensity, obtained considering all available data (in yellow the RAIS stations), while in Figure 8b are reported the PGA residual (in term of difference between the values of ground motion parameter) obtained generating the same map with and without considering the RAIS stations. In this panel the green zone indicates positive residuals (real data recorded by RAIS are higher then the synthetic ones calculated by the empirical predictive model). Maximum differences are of the order of 18 %. The magenta areas indicate the negative ones (real data recorded by RAIS are lower then the synthetic ones calculated by the empirical predictive model). Maximum differences are of the order of 29 %. This result is probably due to the fact that the ground motion prediction equation implemented by INGV-CNT Shakemaps package and used for the area under study (Morasca et al., 2006) tends to underestimate the shaking in near source and overestimate its in far field. This evidence points out both the importance of real data availability, to be used as a test, and at the same time the importance of regional variability in the calibration of empirical predictive models. Conclusions Beginning from June 2006 a phase of installation of strong-motion stations in Northern Italy started in the framework of the INGV-DPC agreement ( Stazioni Accelerometriche project). In this last four years subsequent installations led to build a new strong-motion network in Northern Italy, named RAIS (in Italian, Rete Accelerometrica Italia Settentrionale). In the last two years, thank to funds provided by the INGV-DPC agreement (DPC-S3 project), a technological improvement of the new network was possible. At present 22 strong-motion stations are installed, with an average inter-distance of about 20 km, in the central areas of Northern Italy (Figure 1). At present 14 stations, on a total on 22, transmit data in real-time mode to the acquisition center located in Milan. The recorded data, managed by SeedLink server using a TCP/IP protocol for real time data communication 12

13 under a SeiscomP platform for monitor plotting and disk recording, are stored in MiniSEED format. At present a phase of upgrade concerning the last 8 dial-up stations (based on GSM technology) is in progress. In the period June June 2010 RAIS recorded 103 events (about component waveforms, see figure 2) with M L ranging from 0.7 to 5.1. It is worth noting that the collection of high quality strong motion data represents a fundamental tool for earthquake engineering and engineering seismology studies. In the last years, the RAIS dataset represented (and represents nowadays) a useful source for the calibration of empirical attenuation predictive models computed both at local (Massa et al., 2007; Massa et al., 2008) and at national scale (Bindi et al., 2009). Moreover a total of components records (in terms of PGA, PGV and SA for periods of 0.3 s, 1.0 s and 3.0 s), related to 30 events with M L equal or higher than 3.0, were sent to the INGV-CNT acquisition center in order to improve the ShakeMap (http://earthquake.rm.ingv.it/shakemap/shake/) calculation for the earthquakes occurred in Northern Italy. The records coming from few stations installed inside building (e.g. ASO7, BAG8) allow us to compute investigation about the soil-structure interactions (Massa et al., 2010). It is worth noting that high quality strong-motion records represent the input for each advanced structural analyses that combine ground-motion records with detailed structural models. All metadata related to the events recorded by RAIS (together with the information regarding stations and site characterization) are collected on the web site The waveforms of the events with M L 2.5, recorded in the period June December 2007, were included in the ITalian ACcelerometric Archive (ITACA, in the framework of INGV-DPC agreement (S4 project). 13

14 Acknowledgements RAIS arose in the framework of INGV-DPC agreement ("Stazioni Accelerometriche" project). This work was supported by INGV-DPC agreement, in the framework of the DPC-S3 project Valutazione rapida dei parametri e degli effetti dei forti terremoti in Italia e nel Mediterraneo. Scientific papers funded by DPC do not represent its official opinion and policies. The authors thank all people, both institutional and private citizen, that cooperated in the phases of installation. 14

15 References Arias, A. (1970). A measure of earthquake intensity, in Seismic Design of Nuclear Power Plants, R. Hansen (Editor), M.I.T. press, Cambridge. Augliera, P., E. D Alema, S. Marzorati, M. Massa, P. De Gori and A. Marchetti (2006). Data set Garda 2004: elaborazione dati, installazione stazioni sismiche (2004 Garda dataset: data processing, installation of seismic stations), Convenzione ProCiv-INGV Progetto DPC-S3: scenari di scuotimento in aree di interesse prioritario e/o strategico, DPC-S3: Deliverable12, DVD, (in italian). Augliera, P., E. D Alema, S. Marzorati and M. Massa (2009). A strong motion network in Northern Italy: detection capabilities and first analyses, Bulletin of Earthquake Engineering, DOI: /s y. Bindi, D., L. Luzi, M. Massa and F. Pacor (2009). Horizontal and vertical ground motion prediction equations derived from the Italian Accelerometric Archive (ITACA), Bulletin of Earthquake Engineering, DOI /s Bragato, P.L., P. Augliera, E. D Alema, S. Marzorati, M. Massa and M. Sugan (2009). Effetti di riflessione della Moho in pianura Padana e conseguenze per la stima dello scuotimento nell Italia settentrionale, XXVIII Convegno Nazionale GNGTS, Trieste Novembre 2009, Riassunto Esteso, , (in italian). Brune, J.N. (1970). Tectonic stress and the spectra of seismic shear waves from earthquakes, J. Geophys. Res., 75,

16 CARG Project (2003). Progetto di cartografia geoambientale (Regione Lombardia) alla scala 1:25000, versione 1.0. Base cartografica CTR 1: Cd-Rom (in italian). Castro, R.R., M. Massa, P. Augliera and F. Pacor (2008). Body wave attenuation in the region of Garda, Italy, Pure and Applied Geophysics, 165, D Alema, E. and S. Marzorati (2004). Metodologie per l installazione e la gestione delle stazioni sismiche Mars88 Modem Control, Rapporto tecnico interno n.1/2004 INGV MI-PV (in Italian), (link Rapporti tecnici ). D Alema, E. (2007). Stazioni accelerometriche con REFTEK-130/modem GSM: note tecniche sui softwares in ambiente Linux per la Rete Accelerometrica dell Italia Settentrionale. Rapporti Tecnici INGV, 37 (in italian). Douglas, J. (2007). Inferred ground motion on Guadaloupe during the 2004 Les Saintes earthquake, Bull. Earthquake Eng., 5, Gruppo di Lavoro MPS04 (2004). Redazione della mappa di pericolosità sismica prevista dall ordinanza PCM 3274 del 20 Marzo 2003, Rapporto conclusivo per il Dipartimento della Protezione Civile, INGV, Milano-Roma, 65 pp. (in italian). Gruppo di Lavoro CPTI (2004) Catalogo Parametrico dei Terremoti Italiani, versione 2004 (CPTI04), INGV, Bologna, Hanka, W.A., A. Heinloo and K.-H. Jäckel (2000). Networked Seismographs: GEOFON Real- Time data distribution, ORFEUS Electronic Newsletter, 2, No. 3, 16

17 Housner, G.W. (1952). Spectrum intensities of strong-motion earthquakes, in: Proc. Symp. on Earthquake and Blast Effects Structures, C. M. Feigen (editors), Univ. California, Los Angeles, McNamara, D.E. and R.P. Buland (2004). Ambient noise levels in Continental United States, Bull. Seism. Soc. Am., 94, Marzorati, S. and D. Bindi (2006). Ambient noise levels in North-central Italy, Geochem. Geophys. Geosyst., 7, Q Massa, M., Marzorati S., Ladina C. and S. Lovati (2010). Urban seismic stations: soilstructure interaction assessment by spectral ration analyses, Bulletin of Earthquake Engineering, 8, Massa, M., F. Pacor, L. Luzi, D. Bindi, G. Milana, F. Sabetta, A. Gorini and C. Marcocci (2009). The Italian Accelerometric Archive (ITACA): processing of strong motion data, Bulletin of Earthquake Engineering, DOI /s Massa, M., P. Morasca, L. Moratto, S. Marzorati, G. Costa and D. Spallarossa (2008). Empirical ground motion prediction equations for Northern Italy using weak and strong motion amplitudes, frequency content and duration parameters, Bulletin Seismological Society of America, vol. 98-3, pp Massa, M., S. Marzorati, E. D Alema, D. Di Giacomo and P. Augliera (2007). Site classification assessment for estimating empirical attenuation relationships for North-Central Italy earthquake, Journal of Earthquake Engineering, 11,

18 Michelini, A., L. Faenza, V. Lauciani and L. Malagnini (2008). ShakeMap implementation in Italy, Seismological Research Letters, 79, Morasca, P., L. Malagnini, A. Akinci, D. Spallarossa, and R. B. Herrmann (2006). Groundmotion scaling in the western Alps. Journal of Seismology 10, Moratto, L., G. Costa and P. Suhadolc (2009). Real-time generation of ShakeMaps in the Southeastern Alps, Bull. Seism. Soc. Am., 4, Nakamura, Y. (1989). A method for dynamic characteristics estimations of subsurface using microtremors on the ground surface, Quarterly Rept. RTRI Japan 30, NTC (Nuove Norme Tecniche per le Costruzioni) (2008). Part 3: Categorie di sottosuolo e condizioni topografiche, Gazzetta Ufficiale n. 29 del 4 febbraio 2008 (in italian) Peterson, J, (1993). Observation and modeling of background seismic noise, Open File Report , USGS, Albuquerque, New Mexico. Rao, S., L. Salvaterra and C. Acerra (2010). Software per l'installazione e la configurazione della stazione sismica GAIA2, Rapporti Tecnici INGV, 130, 52pp (in italian). SGI (Società Geologica Italiana) (1984). Carta geologica d'italia 1: Base cartografica IGM 1: Wald, D.J., V. Quitoriano, T.H. Heaton and H. Kanamori (2008). Quantifying and Qualifying USGS ShakeMap Uncertainty, U.S. Geological Survey Open File Report

19 Wald, D.J., C.B. Worden, V. Quitoriano and K.L. Pankow (2006). ShakeMap Manual, Technical Manual, Users Guide, and Software Guide, pdf/508tm12-a1.pdf 19

20 Captions Figure 1 - RAIS strong-motion network. Different colours are used to indicate stations characterized by different recording system or different data-transmission type. The white square indicates the epicenter of the 24 th November 2004, M L 5.2, Salò earthquake. Figure 2 - Top panel: events recorded by RAIS in the period June June 2010 (dark grey circles) and background seismicity occurred in the whole North Italy (light grey circles). Epicenter coordinate derive from the official INGV instrumental bulletin (http://bollettinosismico.rm.ingv.it/). The red triangles indicate the RAIS strong-motion stations. Bottom panel: historical seismicity of the area under study (from CPTI04, Gruppo di Lavoro CPTI 2004). The blue star indicates the epicenter of the 24 th November 2004, M L 5.2, Salò earthquake. Figure 3 RAIS and national seismic network present in North Italy and surroundings: in red the RAIS stations (http://rais.mi.ingv.it, the little black triangles plotted inside the red triangles indicate a site equipped with both weak and strong motion sensor), in green the velocimetric stations managed by the National Earthquake Center of INGV (http://cnt.rm.ingv.it/), in yellow the INGV-CNT satellite velocimetric stations, in grey the RAN strong motion stations managed by Italian Civil Protection (DPC, in violet the SDS- Net velocimetric stations (http://www.seismo.ethz.ch/). Figure 4 - Example of site characterization of VOBA station (NTC08 B lithological class, see also table 1). Top left panel: geological map (1: scale). Top right panel: Probability Density Function (PDF) of power spectral density (PSD) performed on seismic noise. Bottom left panel: Horizontal to vertical spectral ratio performed considering recorded earthquakes 20

RAIS: a real time strong-motion network in northern Italy

RAIS: a real time strong-motion network in northern Italy ANNALS OF GEOPHYSICS, 54, 1, 2011; doi: 10.4401/ag-4855 RAIS: a real time strong-motion network in northern Italy Paolo Augliera 1,*, Marco Massa 1, Ezio D'Alema 2, Simone Marzorati 2 1 Istituto Nazionale

More information

Nearly real-time monitoring system of TABOO seismic network activity.

Nearly real-time monitoring system of TABOO seismic network activity. Nearly real-time monitoring system of TABOO seismic network activity. Marzorati S.* and TABOO working group * National Earthquake Centre, Ancona Istituto Nazionale di Geofisica e Vulcanologia Nearly real-time

More information

ERMES. Monitoring of radon in geogas at the Gran Sasso National Laboratory

ERMES. Monitoring of radon in geogas at the Gran Sasso National Laboratory ERMES. Monitoring of radon in geogas at the Gran Sasso National Laboratory G. De Luca a and W. Plastino b a Istituto Nazionale di Geofisica e Vulcanologia (INGV) Centro Nazionale Terremoti (CNT), Via di

More information

Seismic hazard in the Po Plain and the 2012 Emilia earthquakes

Seismic hazard in the Po Plain and the 2012 Emilia earthquakes 2012 EMILIA EARTHQUAKES ANNALS OF GEOPHYSICS, 55, 4, 2012; doi: 10.4401/ag-6158 Seismic hazard in the Po Plain and the 2012 Emilia earthquakes Carlo Meletti, Vera D'Amico, Gabriele Ameri, Andrea Rovida,

More information

PROHITECH WP3 (Leader A. IBEN BRAHIM) A short Note on the Seismic Hazard in Israel

PROHITECH WP3 (Leader A. IBEN BRAHIM) A short Note on the Seismic Hazard in Israel PROHITECH WP3 (Leader A. IBEN BRAHIM) A short Note on the Seismic Hazard in Israel Avigdor Rutenberg and Robert Levy Technion - Israel Institute of Technology, Haifa 32000, Israel Avi Shapira International

More information

AFAD DEPREM DAİRESİ BAŞKANLIĞI TÜRKİYE KUVVETLİ YER HAREKETİ ve ÖN HASAR TAHMİN SİSTEMLERİ ÇALIŞMA GRUBU. (Rapid Estimation Damage)

AFAD DEPREM DAİRESİ BAŞKANLIĞI TÜRKİYE KUVVETLİ YER HAREKETİ ve ÖN HASAR TAHMİN SİSTEMLERİ ÇALIŞMA GRUBU. (Rapid Estimation Damage) (Rapid Estimation Damage) AFAD-RED SYSTEM The technological advances in seismic instrumentation and telecommunication permit the development of rapid estimation of earthquake losses in order to enhance

More information

Software for strong-motion data display and processing

Software for strong-motion data display and processing Project S6 Data base of the Italian strong-motion data relative to the period 1972-2004 Coordinators: Lucia Luzi (INGV-MI) and Fabio Sabetta (DPC-USSN) TASK 2 - Deliverable 4 Software for strong-motion

More information

STUDI DI MICROZONAZIONE SISMICA: TEORIA E APPLICAZIONI. Gli effetti di amplificazione topografica: aspetti teorici e casi studio

STUDI DI MICROZONAZIONE SISMICA: TEORIA E APPLICAZIONI. Gli effetti di amplificazione topografica: aspetti teorici e casi studio Istituto Nazionale di Geofisica e Vulcanologia Regione autonoma Valle D Aosta Università degli Studi di Genova (Dip.Te.Ris., Geofisica) CORSO DI AGGIORNAMENTO PER GEOLOGI 18-19 Ottobre 2011 STUDI DI MICROZONAZIONE

More information

Probabilistic Seismic Hazard Analysis for Induced Earthquakes in Groningen; Update 2015. Bernard Dost and Jesper Spetzler KNMI, October 2015

Probabilistic Seismic Hazard Analysis for Induced Earthquakes in Groningen; Update 2015. Bernard Dost and Jesper Spetzler KNMI, October 2015 1 Probabilistic Seismic Hazard Analysis for Induced Earthquakes in Groningen; Update 2015 Bernard Dost and Jesper Spetzler KNMI, October 2015 Introduction In this report an update of the Probabilistic

More information

ABSG Consulting, Tokyo, Japan Email: tkubo@absconsulting.co.jp 2. Professor, Kogakuin University, Tokyo, Japan 3

ABSG Consulting, Tokyo, Japan Email: tkubo@absconsulting.co.jp 2. Professor, Kogakuin University, Tokyo, Japan 3 Application of Earthquake Early Warning System and Real-time Strong-motion Monitoring System to Earthquake Disaster Mitigation of a High-Rise Building in Tokyo, Japan Tomohiro Kubo 1, Yoshiaki Hisada 2,

More information

Determination of source parameters from seismic spectra

Determination of source parameters from seismic spectra Topic Determination of source parameters from seismic spectra Authors Michael Baumbach, and Peter Bormann (formerly GeoForschungsZentrum Potsdam, Telegrafenberg, D-14473 Potsdam, Germany); E-mail: pb65@gmx.net

More information

Automated control procedures and first results from the temporary seismic monitoring of the 2012 Emilia Sequence

Automated control procedures and first results from the temporary seismic monitoring of the 2012 Emilia Sequence Automated control procedures and first results from the temporary seismic monitoring of the 2012 Emilia Sequence Authors: Simone Marzorati 1, Simona Carannante 1, Marco Cattaneo 1, Ezio D'Alema 1, Massimo

More information

Network of European Research Infrastructures for Earthquake Risk Assessment and Mitigation. Report

Network of European Research Infrastructures for Earthquake Risk Assessment and Mitigation. Report Network of European Research Infrastructures for Earthquake Risk Assessment and Mitigation Report Exchange protocol for (near) real time parametric data Activity: Activity number: Networking accelerometric

More information

STRONG GROUND MOTION MONITORING NETWORK IN THE LEGNICA-GŁOGÓW COPPER MINING DISTRICT

STRONG GROUND MOTION MONITORING NETWORK IN THE LEGNICA-GŁOGÓW COPPER MINING DISTRICT Acta Geodyn. Geomater., Vol.2, No.3 (139), 145-150, 2005 STRONG GROUND MOTION MONITORING NETWORK IN THE LEGNICA-GŁOGÓW COPPER MINING DISTRICT Janusz MIREK AGH University of Science and Technology, Faculty

More information

Advanced GIS for Loss Estimation and Rapid Post-Earthquake Assessment of Building Damage

Advanced GIS for Loss Estimation and Rapid Post-Earthquake Assessment of Building Damage Advanced GIS for Loss Estimation and Rapid Post-Earthquake Assessment of Building Damage Thomas D. O Rourke and Sang-Soo Jeon, Cornell University and Ronald T. Eguchi and Charles K. Huyck, Image Cat, Inc.

More information

Mapping the Tyrrhenian and Adriatic Mohos across the northern and central Apennine chain through teleseismic receiver functions

Mapping the Tyrrhenian and Adriatic Mohos across the northern and central Apennine chain through teleseismic receiver functions Mapping the Tyrrhenian and Adriatic Mohos across the northern and central Apennine chain through teleseismic receiver functions Giuliana Mele Istituto Nazionale di Geofisica e Vulcanologia - Roma, Italy

More information

=6.3 Abruzzo (Central Italy) earthquake. Strong motion parameters of the M w. Open File Report:

=6.3 Abruzzo (Central Italy) earthquake. Strong motion parameters of the M w. Open File Report: Strong motion parameters of the M w =6.3 Abruzzo (Central Italy) earthquake Ameri G., Augliera P., Bindi D., D'Alema E., Ladina C., Lovati S., Luzi L., Marzorati S., Massa M., Pacor F. and Puglia R. Open

More information

FROM DRAWING ANTICLINE AXES TO 3D MODELLING OF SEISMOGENIC SOURCES: EVOLUTION OF SEISMOTECTONIC MAPPING IN THE PO PLAIN

FROM DRAWING ANTICLINE AXES TO 3D MODELLING OF SEISMOGENIC SOURCES: EVOLUTION OF SEISMOTECTONIC MAPPING IN THE PO PLAIN FROM DRAWING ANTICLINE AXES TO 3D MODELLING OF SEISMOGENIC SOURCES: EVOLUTION OF SEISMOTECTONIC MAPPING IN THE PO PLAIN Burrato P.*, Maesano F. E. *, D Ambrogi C.**, Toscani G., Valensise G.* (*) INGV,

More information

SUMMARY OF MAGNITUDE WORKING GROUP RECOMMENDATIONS ON DETERMINING EARTHQUAKE MAGNITUDES FROM DIGITAL DATA

SUMMARY OF MAGNITUDE WORKING GROUP RECOMMENDATIONS ON DETERMINING EARTHQUAKE MAGNITUDES FROM DIGITAL DATA B SUMMARY OF MAGNITUDE WORKING GROUP RECOMMENDATIONS ON DETERMINING EARTHQUAKE MAGNITUDES FROM DIGITAL DATA The Working Group on Magnitudes (Magnitude WG) of the International Association of Seismology

More information

SOFTWARE FOR GENERATION OF SPECTRUM COMPATIBLE TIME HISTORY

SOFTWARE FOR GENERATION OF SPECTRUM COMPATIBLE TIME HISTORY 3 th World Conference on Earthquake Engineering Vancouver, B.C., Canada August -6, 24 Paper No. 296 SOFTWARE FOR GENERATION OF SPECTRUM COMPATIBLE TIME HISTORY ASHOK KUMAR SUMMARY One of the important

More information

A STUDY ON THE EFFECTS OF SURFACE WAVES GENERATED

A STUDY ON THE EFFECTS OF SURFACE WAVES GENERATED A STUDY ON THE EFFECTS OF SURFACE WAVES GENERATED IN DEEP SEDIMENTARY BASINS DURING A MAJOR EARTHQUAKE K. Eto ), K. Motoki 2) and K. Seo 3) )Graduate student, Department of Built Environment, Tokyo Institute

More information

12.510 Introduction to Seismology Spring 2008

12.510 Introduction to Seismology Spring 2008 MIT OpenCourseWare http://ocw.mit.edu 12.510 Introduction to Seismology Spring 2008 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms. 04/30/2008 Today s

More information

Sismalog S t a n d - a l o n e S e i s m o g r a p h www.mae-srl.it

Sismalog S t a n d - a l o n e S e i s m o g r a p h www.mae-srl.it S t a n d - a l o n e S e i s m o g r a p h www.mae-srl.it REVISIONE DATA 1.0 Febbraio 2013 Summary Chapter 1. FIELDS OF ACTION... 3 1.1 TERRITORIAL SEISMIC MONITORING... 3 1.2 DYNAMIC SURVEYS ON STRUCTURES...

More information

Research Article Effects of Digital Filtering in Data Processing of Seismic Acceleration Records

Research Article Effects of Digital Filtering in Data Processing of Seismic Acceleration Records Hindawi Publishing Corporation EURASIP Journal on Advances in Signal Processing Volume 7, Article ID 95, 9 pages doi:.55/7/95 Research Article Effects of Digital Filtering in Data Processing of Seismic

More information

Automated control procedures and first results from the temporary seismic monitoring of the 2012 Emilia sequence

Automated control procedures and first results from the temporary seismic monitoring of the 2012 Emilia sequence ANNALS OF GEOPHYSICS, 55, 4, 2012; doi: 10.4401/ag-6116 2012 EMILIA EARTHQUAKES Automated control procedures and first results from the temporary seismic monitoring of the 2012 Emilia sequence Simone Marzorati

More information

CO 2 storage science development and application in Italy

CO 2 storage science development and application in Italy CO 2 storage science development and application in Italy Salvatore Lombardi Carbon Sequestration Leadership Forum, 16-19 April 2013 Rome, Italy Objectives Site selection and characterization Acquisition

More information

Seismic Risk Assessment Procedures for a System consisting of Distributed Facilities -Part three- Insurance Portfolio Analysis

Seismic Risk Assessment Procedures for a System consisting of Distributed Facilities -Part three- Insurance Portfolio Analysis Seismic Risk Assessment Procedures for a System consisting of Distributed Facilities -Part three- Insurance Portfolio Analysis M. Achiwa & M. Sato Yasuda Risk Engineering Co., Ltd., Tokyo, Japan M. Mizutani

More information

TRAVEL TIME RESIDUALS FROM THE NEW AND OLD SEISMIC NETWORKS OF PAKISTAN AND PRELIMINARY HYPOCENTER DETERMINATION

TRAVEL TIME RESIDUALS FROM THE NEW AND OLD SEISMIC NETWORKS OF PAKISTAN AND PRELIMINARY HYPOCENTER DETERMINATION TRAVEL TIME RESIDUALS FROM THE NEW AND OLD SEISMIC NETWORKS OF PAKISTAN AND PRELIMINARY HYPOCENTER DETERMINATION Nasir Mahmood MEE07163 Supervisor: Tatsuhiko HARA ABSTRACT The Pakistan Meteorological Department

More information

Plio-Quaternary tectonic evolution of the Northern Apennines thrust fronts. along the Bologna-Ferrara section (Po Plain, Italy), based on geological

Plio-Quaternary tectonic evolution of the Northern Apennines thrust fronts. along the Bologna-Ferrara section (Po Plain, Italy), based on geological Plio-Quaternary tectonic evolution of the Northern Apennines thrust fronts along the Bologna-Ferrara section (Po Plain, Italy), based on geological observations and analogue modelling: seismotectonic implications

More information

RAPID POST-EARTHQUAKE STRONG-MOTION DATA FROM THE CISN ENGINEERING STRONG MOTION DATA CENTER

RAPID POST-EARTHQUAKE STRONG-MOTION DATA FROM THE CISN ENGINEERING STRONG MOTION DATA CENTER 13 th World Conference on Earthquake Engineering Vancouver, B.C., Canada August 1-6, 2004 Paper No. 2944 RAPID POST-EARTHQUAKE STRONG-MOTION DATA FROM THE CISN ENGINEERING STRONG MOTION DATA CENTER Moh

More information

Data in seismology: networks, instruments, current problems

Data in seismology: networks, instruments, current problems Data in seismology: networks, instruments, current problems Seismic networks, data centres, instruments Seismic Observables and their interrelations Seismic data acquisition parameters (sampling rates,

More information

Name: Date: Class: Finding Epicenters and Measuring Magnitudes Worksheet

Name: Date: Class: Finding Epicenters and Measuring Magnitudes Worksheet Example Answers Name: Date: Class: Finding Epicenters and Measuring Magnitudes Worksheet Objective: To use seismic data and an interactive simulation to triangulate the location and measure the magnitude

More information

CONTRASTING DISPLACEMENT DEMANDS OF DUCTILE STRUCTURES FROM TOHOKU SUBDUCTION TO CRUSTAL EARTHQUAKE RECORDS. Peter Dusicka 1 and Sarah Knoles 2

CONTRASTING DISPLACEMENT DEMANDS OF DUCTILE STRUCTURES FROM TOHOKU SUBDUCTION TO CRUSTAL EARTHQUAKE RECORDS. Peter Dusicka 1 and Sarah Knoles 2 CONTRASTING DISPLACEMENT DEMANDS OF DUCTILE STRUCTURES FROM TOHOKU SUBDUCTION TO CRUSTAL EARTHQUAKE RECORDS Abstract Peter Dusicka 1 and Sarah Knoles 2 With the impending Cascadia subduction zone event

More information

Curriculum vitae of Matteo Spada (May 2010)

Curriculum vitae of Matteo Spada (May 2010) Curriculum vitae of Matteo Spada (May 2010) Personal Information Name Matteo Spada Date of birth 26 September 1980 Citizen Marital status Vipiteno/Sterzing Bolzano/Bozen Married, 1 child My Picture Residence

More information

Building 1D reference velocity model of the Irpinia region (Southern Apennines): microearthquakes locations and focal mechanism

Building 1D reference velocity model of the Irpinia region (Southern Apennines): microearthquakes locations and focal mechanism Building 1D reference velocity model of the Irpinia region (Southern Apennines): microearthquakes locations and focal mechanism Tutor Prof. Raffaella De Matteis PhD student Emanuela Matrullo Geophisics

More information

HVSR recording duration for regolith sites: an experimental approach

HVSR recording duration for regolith sites: an experimental approach Proceedings of the Tenth Pacific Conference on Earthquake Engineering Building an Earthquake-Resilient Pacific 6-8 November 205, Sydney, Australia HVSR recording duration for regolith sites: an experimental

More information

RECOMMENDATION ITU-R F.1113. (Question ITU-R 157/9) b) that systems using this mode of propagation are already in service for burst data transmission,

RECOMMENDATION ITU-R F.1113. (Question ITU-R 157/9) b) that systems using this mode of propagation are already in service for burst data transmission, Rec. ITU-R F.1113 1 RECOMMENDATION ITU-R F.1113 RADIO SYSTEMS EMPLOYING METEOR-BURST PROPAGATION (Question ITU-R 157/9) (1994) Rec. ITU-R F.1113 The ITU Radiocommunication Assembly, considering a) that

More information

ISTANBUL EARTHQUAKE RAPID RESPONSE AND THE EARLY WARNING SYSTEM

ISTANBUL EARTHQUAKE RAPID RESPONSE AND THE EARLY WARNING SYSTEM 13 th World Conference on Earthquake Engineering Vancouver, B.C., Canada August 1-6, 2004 Paper No. 272 ISTANBUL EARTHQUAKE RAPID RESPONSE AND THE EARLY WARNING SYSTEM A. MERT 1, H. ALÇIK 2, M. ERDİK 3,

More information

Center for Engineering Strong-Motion Data (CESMD)

Center for Engineering Strong-Motion Data (CESMD) Center for Engineering Strong-Motion Data (CESMD) H. Haddadi 1, A. Shakal 1, C. Stephens 2, W. Savage 2, M. Huang 1, W. Leith 2, J. Parrish 1 and R. Borcherdt 2 ABSTRACT : 1 California Geological Survey,

More information

Using Micro-ElectroMechanical Systems (MEMS) accelerometers for earthquake monitoring

Using Micro-ElectroMechanical Systems (MEMS) accelerometers for earthquake monitoring Environmental Systems & Services Pty Ltd PO Box 939 Hawthorn VIC 3122 Australia www.esands.com esands@esands.com Using Micro-ElectroMechanical Systems (MEMS) accelerometers for earthquake monitoring Adam

More information

1. Record Processing Methods Utilized by Networks

1. Record Processing Methods Utilized by Networks 1. Methods Utilized by Networks 1.4 PROCESSING OF EUROPEAN STRONG-MOTION RECORDS AT IMPERIAL COLLEGE LONDON JULIAN J. BOMMER JOHN DOUGLAS Imperial College London STRONG-MOTION RECORDING IN EUROPE AND ADJACENT

More information

The seismic activity in the area of Greece between 1966 and 1969

The seismic activity in the area of Greece between 1966 and 1969 The seismic activity in the area of Greece between 1966 and 1969 P. A. GIANNAKOPOULOS * Received on March 28'", 1972 SUMMARY. The earthquake activity in the area of Greece for the years 1966, 1967, 1968

More information

Integration between spaceand ground-based data sets: application on ground deformations measurements

Integration between spaceand ground-based data sets: application on ground deformations measurements Integration between spaceand ground-based data sets: application on ground deformations measurements Giuseppe Puglisi Istituto Nazionale di Geofisica e Vulcanologia Sezione di Catania Osservatorio Etneo

More information

Ground Motion Estimation with Antelope

Ground Motion Estimation with Antelope Ground Motion Estimation with Antelope European Antelope Users Group Meeting Dr. Kent Lindquist Goal Understand the true 2D ground motion right after an earthquake Ideal Solution: Measure It! One station

More information

Development of Emergent Alarm System using the Earthquake Early Warning by Japan Meteorological Agencyed from Microtremor Records

Development of Emergent Alarm System using the Earthquake Early Warning by Japan Meteorological Agencyed from Microtremor Records Development of Emergent Alarm System using the Earthquake Early Warning by Japan Meteorological Agencyed from Microtremor Records K. Masaki Department of Urban Environment, Aichi Institute of Technology,

More information

1 Introduction. External Grant Award Number: 04HQGR0038. Title: Retrieval of high-resolution kinematic source parameters for large earthquakes

1 Introduction. External Grant Award Number: 04HQGR0038. Title: Retrieval of high-resolution kinematic source parameters for large earthquakes External Grant Award Number: 04HQGR0038 Title: Retrieval of high-resolution kinematic source parameters for large earthquakes Author: Hong Kie Thio URS Group Inc. 566 El Dorado Street, 2 nd floor Pasadena,

More information

102 26-m Antenna Subnet Telecommunications Interfaces

102 26-m Antenna Subnet Telecommunications Interfaces DSMS Telecommunications Link Design Handbook 26-m Antenna Subnet Telecommunications Interfaces Effective November 30, 2000 Document Owner: Approved by: Released by: [Signature on file in TMOD Library]

More information

HAMMER RelationsHips between meteo-climatic parameters and ground surface deformation time series in mountain environments

HAMMER RelationsHips between meteo-climatic parameters and ground surface deformation time series in mountain environments SPECIAL PROJECT PP5 HAMMER RelationsHips between meteo-climatic parameters and ground surface deformation time series in mountain environments F. Ardizzone, P. Allasia, M. Cignetti, D. Giordan, A. Manconi,

More information

Field reconnaissance on August 25 th, after August 24 th, 2016 Central Italy Earthquake

Field reconnaissance on August 25 th, after August 24 th, 2016 Central Italy Earthquake Field reconnaissance on August 25 th, after August 24 th, 2016 Central Italy Earthquake Gian Paolo Cimellaro Associate professor Politecnico di Torino Outline Seismic sequence; Main shock; Emergency Response;

More information

Instrument Testing and Evaluation for the Taiwan Strong-Motion Instrumentation Program

Instrument Testing and Evaluation for the Taiwan Strong-Motion Instrumentation Program Instrument Testing and Evaluation for the Taiwan Strong-Motion Instrumentation Program C.-C. LIU Institute of Earth Sciences, Academia Sinica, Taipei W. H. K. LEE U.S. Geological Survey, Menlo Park, CA

More information

SMIP2000 Seminar Proceedings COSMOS VIRTUAL STRONG MOTION DATA CENTER. Ralph Archuleta

SMIP2000 Seminar Proceedings COSMOS VIRTUAL STRONG MOTION DATA CENTER. Ralph Archuleta COSMOS VIRTUAL STRONG MOTION DATA CENTER Ralph Archuleta Institute for Crustal Studies & Department of Geological Sciences University of California, Santa Barbara ABSTRACT The COSMOS virtual data center

More information

CyberShake Simulations for Path Effects near SONGS

CyberShake Simulations for Path Effects near SONGS CyberShake Simulations for Path Effects near SONGS Feng Wang, Thomas H. Jordan, Robert Graves, Scott Callaghan, Philip Maechling, and the CME Collaboration 2 SCEC s CyberShake utilizes 3D simulations and

More information

Seismic Risk Study: Earthquake Scenario-Based Risk Assessment

Seismic Risk Study: Earthquake Scenario-Based Risk Assessment Review of Arup Report Seismic Risk Study: Earthquake Scenario-Based Risk Assessment Julian Bommer, Helen Crowley & Rui Pinho Scope This document presents a brief review of the report by Arup (REP/229746/SR001,

More information

Robot Perception Continued

Robot Perception Continued Robot Perception Continued 1 Visual Perception Visual Odometry Reconstruction Recognition CS 685 11 Range Sensing strategies Active range sensors Ultrasound Laser range sensor Slides adopted from Siegwart

More information

ACOUSTIC EMISSION SIGNALS GENERATED BY MONOPOLE (PEN- CIL-LEAD BREAK) VERSUS DIPOLE SOURCES: FINITE ELEMENT MODELING AND EXPERIMENTS

ACOUSTIC EMISSION SIGNALS GENERATED BY MONOPOLE (PEN- CIL-LEAD BREAK) VERSUS DIPOLE SOURCES: FINITE ELEMENT MODELING AND EXPERIMENTS ACOUSTIC EMISSION SIGNALS GENERATED BY MONOPOLE (PEN- CIL-LEAD BREAK) VERSUS DIPOLE SOURCES: FINITE ELEMENT MODELING AND EXPERIMENTS M. A. HAMSTAD Department of Mechanical and Materials Engineering, University

More information

An Overview of the National Earthquake Information Center Acquisition Software System, Edge/Continuous Waveform Buffer

An Overview of the National Earthquake Information Center Acquisition Software System, Edge/Continuous Waveform Buffer An Overview of the National Earthquake Information Center Acquisition Software System, Edge/Continuous Waveform Buffer By John M. Patton, David C. Ketchum, and Michelle R. Guy Open-File Report 2015 1174

More information

Greens functions - solution for earthʼs surface movement due to a slipping patch at depth

Greens functions - solution for earthʼs surface movement due to a slipping patch at depth Greens functions - solution for earthʼs surface movement due to a slipping patch at depth Need to know slip distribution along the fault as a function of time No closed-form solution for Greens functions

More information

US Structure and Ground Motion Data. Virtual Data Center (VDC)

US Structure and Ground Motion Data. Virtual Data Center (VDC) Update on the Center for Engineering Strong Motion Data (CESMD) : US Structure and Ground Motion Data Virtual Data Center (VDC) By Hamid Hadaddi (CGS) Chris Stephens (USGS) CESMD Objectives and Operation

More information

THE STRUCTURAL HEALTH MONITORING SYSTEM OF THE RION ANTIRION BRIDGE CHARILAOS TRIKOUPIS. Akis Panagis

THE STRUCTURAL HEALTH MONITORING SYSTEM OF THE RION ANTIRION BRIDGE CHARILAOS TRIKOUPIS. Akis Panagis InnoWeek on RES July 03,2013, Patras, Greece THE STRUCTURAL HEALTH MONITORING SYSTEM OF THE RION ANTIRION BRIDGE CHARILAOS TRIKOUPIS Akis Panagis Monitoring engineer Gefyra S.A. INDEX 1. Introduction-Structure

More information

An Algorithm for Automatic Base Station Placement in Cellular Network Deployment

An Algorithm for Automatic Base Station Placement in Cellular Network Deployment An Algorithm for Automatic Base Station Placement in Cellular Network Deployment István Törős and Péter Fazekas High Speed Networks Laboratory Dept. of Telecommunications, Budapest University of Technology

More information

Bandwidth-dependent transformation of noise data from frequency into time domain and vice versa

Bandwidth-dependent transformation of noise data from frequency into time domain and vice versa Topic Bandwidth-dependent transformation of noise data from frequency into time domain and vice versa Authors Peter Bormann (formerly GeoForschungsZentrum Potsdam, Telegrafenberg, D-14473 Potsdam, Germany),

More information

Email: tjohn@mail.nplindia.ernet.in

Email: tjohn@mail.nplindia.ernet.in USE OF VIRTUAL INSTRUMENTS IN RADIO AND ATMOSPHERIC EXPERIMENTS P.N. VIJAYAKUMAR, THOMAS JOHN AND S.C. GARG RADIO AND ATMOSPHERIC SCIENCE DIVISION, NATIONAL PHYSICAL LABORATORY, NEW DELHI 110012, INDIA

More information

Seismic Waves Practice

Seismic Waves Practice 1. Base your answer to the following question on the diagram below, which shows models of two types of earthquake waves. Model A best represents the motion of earthquake waves called 1) P-waves (compressional

More information

Network of European Research Infrastructures for Earthquake Risk Assessment and Mitigation. Report

Network of European Research Infrastructures for Earthquake Risk Assessment and Mitigation. Report Network of European Research Infrastructures for Earthquake Risk Assessment and Mitigation Report Automatic data QC and distribution statistics for data providers Activity: Activity number: Expanding access

More information

TRAINING SYSTEM AND INFORMATION NETWORK FOR EARTHQUAKE DISASTER MITIGATION

TRAINING SYSTEM AND INFORMATION NETWORK FOR EARTHQUAKE DISASTER MITIGATION TRAINING SYSTEM AND INFORMATION NETWORK FOR EARTHQUAKE DISASTER MITIGATION T. Saito 1, N. Hurukawa 2, T.Yokoi 2, T. Hara 2, B. Shibazaki 2, Y. Fujii 2, S. Koyama 2, T. Kashima 2 and T. Mukai 2 1 International

More information

SEISMIC TESTING OF NON-STRUCTURAL COMPONENTS AND ASSESSMENT OF THE PRESCRIBED RESPONSE SPECTRUM

SEISMIC TESTING OF NON-STRUCTURAL COMPONENTS AND ASSESSMENT OF THE PRESCRIBED RESPONSE SPECTRUM NCEE Tenth U.S. National Conference on Earthquake Engineering Frontiers of Earthquake Engineering July -5, Anchorage, Alaska SEISMIC TESTING OF NON-STRUCTURAL COMPONENTS AND ASSESSMENT OF THE PRESCRIBED

More information

Geophysical Journal International

Geophysical Journal International Geophysical Journal International Geophys. J. Int. (2009) doi: 10.1111/j.1365-246X.2009.04418.x EXPRESS LETTER Seismic moment tensors of the April 2009, L Aquila (Central Italy), earthquake sequence S.

More information

Building a simple seismometer

Building a simple seismometer Building a simple seismometer Seismometers operate on the principle of inertia, i.e. a body at rest will tend to remain that way unless a force is applied to make it move. An ideal seismometer would be

More information

Class Notes from: Geotechnical Earthquake Engineering By Steven Kramer, Prentice-Hall. Ground motion parameters

Class Notes from: Geotechnical Earthquake Engineering By Steven Kramer, Prentice-Hall. Ground motion parameters These notes have been prepared by Mr. Liangcai He, 4 Class Notes from: Geotechnical Earthquake Engineering By Steven Kramer, Prentice-Hall Ground motion parameters Ground motion parameters are important

More information

Exploring plate motion and deformation in California with GPS

Exploring plate motion and deformation in California with GPS Exploring plate motion and deformation in California with GPS Student worksheet Cate Fox-Lent, UNAVCO master teacher; Andy Newman, Georgia Institute of Technology; Shelley Olds, UNAVCO; and revised by

More information

Department of Electrical and Computer Engineering Ben-Gurion University of the Negev. LAB 1 - Introduction to USRP

Department of Electrical and Computer Engineering Ben-Gurion University of the Negev. LAB 1 - Introduction to USRP Department of Electrical and Computer Engineering Ben-Gurion University of the Negev LAB 1 - Introduction to USRP - 1-1 Introduction In this lab you will use software reconfigurable RF hardware from National

More information

Ongoing applications of EEW and SHM at the University of Naples Federico II

Ongoing applications of EEW and SHM at the University of Naples Federico II Ongoing applications of EEW and SHM at the University of Naples Federico II Edoardo Cosenza, Carmine Galasso, Iunio Iervolino ABSTRACT 1 The aim of earthquake early warning (EEW) and structural health

More information

CASE STUDY LANDSLIDE MONITORING

CASE STUDY LANDSLIDE MONITORING Introduction Monitoring of terrain movements (unstable slopes, landslides, glaciers, ) is an increasingly important task for today s geotechnical people asked to prevent or forecast natural disaster that

More information

Intermediate Seismic Hazard (May 2011) Evaluation of an intermediate seismic hazard for the existing Swiss nuclear power plants

Intermediate Seismic Hazard (May 2011) Evaluation of an intermediate seismic hazard for the existing Swiss nuclear power plants Intermediate Seismic Hazard (May 211) Evaluation of an intermediate seismic hazard for the existing Swiss nuclear power plants Document Rev. Date Prepared Checked Approved FGK-11.39.GS 1 27.6.211 Ph. Renault

More information

GNSS seismology for the 2012 M w = 6.1 Emilia Earthquake: exploiting the VADASE algorithm

GNSS seismology for the 2012 M w = 6.1 Emilia Earthquake: exploiting the VADASE algorithm GNSS seismology for the 2012 M w = 6.1 Emilia Earthquake: exploiting the VADASE algorithm E. Benedetti 1, M. Branzanti 1, L. Biagi 2, G. Colosimo 1, A. Mazzoni 1 and M. Crespi 1 Corresponding author: E.

More information

2.3 Spatial Resolution, Pixel Size, and Scale

2.3 Spatial Resolution, Pixel Size, and Scale Section 2.3 Spatial Resolution, Pixel Size, and Scale Page 39 2.3 Spatial Resolution, Pixel Size, and Scale For some remote sensing instruments, the distance between the target being imaged and the platform,

More information

RMS - Remote Monitoring System: GPS application on an Harbour Structure

RMS - Remote Monitoring System: GPS application on an Harbour Structure Ingenieurvermessung 2004 14th International Conference on Engineering Surveying Zürich, 15. 19. März 2004 RMS - Remote Monitoring System: GPS application on an Harbour Structure Luca Manetti GEODEV SA

More information

Overview. NRC Regulations for Seismic. Applied to San Onofre Nuclear Generating Station. NRC History. How we Regulate

Overview. NRC Regulations for Seismic. Applied to San Onofre Nuclear Generating Station. NRC History. How we Regulate Overview 1. NRC History and Overview NRC Regulations for Seismic Analysis and Design Applied to San Onofre Nuclear Generating Station Christie Hale Megan Williams 2. Regulations for Seismic Hazards 3.

More information

Seismic Isolated Hospital Design Practice in Turkey: Erzurum Medical Campus

Seismic Isolated Hospital Design Practice in Turkey: Erzurum Medical Campus Seismic Isolated Hospital Design Practice in Turkey: Erzurum Medical Campus J. Kubin, D. Kubin, A. Özmen, O.B. Şadan, E. Eroğlu Prota Engineering Design and Consultancy Services Inc. H. Sucuoğlu, S. Akkar

More information

E190Q Lecture 5 Autonomous Robot Navigation

E190Q Lecture 5 Autonomous Robot Navigation E190Q Lecture 5 Autonomous Robot Navigation Instructor: Chris Clark Semester: Spring 2014 1 Figures courtesy of Siegwart & Nourbakhsh Control Structures Planning Based Control Prior Knowledge Operator

More information

THE 2004 SUMATRA EARTHQUAKE AND INDIAN OCEAN TSUNAMI: WHAT HAPPENED AND WHY

THE 2004 SUMATRA EARTHQUAKE AND INDIAN OCEAN TSUNAMI: WHAT HAPPENED AND WHY Page 6 The Earth Scientist THE 2004 SUMATRA EARTHQUAKE AND INDIAN OCEAN TSUNAMI: WHAT HAPPENED AND WHY Seth Stein and Emile A. Okal Dept of Geological Sciences, Northwestern University, Evanston Illinois

More information

A STATISTICAL STUDY FOR THE CORRELATION OF NON DESTRUCTIVE TESTING AND DESTRUCTIVE TESTING ON STRUCTURES IN CONCRETE

A STATISTICAL STUDY FOR THE CORRELATION OF NON DESTRUCTIVE TESTING AND DESTRUCTIVE TESTING ON STRUCTURES IN CONCRETE A STATISTICAL STUDY FOR THE CORRELATION OF NON DESTRUCTIVE TESTING AND DESTRUCTIVE TESTING ON STRUCTURES IN CONCRETE Vincenza A.M. LUPRANO a a, Valerio PFISTER, Angelo TATÌ b, Antonella TUNDO a a ENEA,

More information

Structural Monitoring and Evaluation Tools at Caltech: Instrumentation and Real-Time Data Analysis

Structural Monitoring and Evaluation Tools at Caltech: Instrumentation and Real-Time Data Analysis Structural Monitoring and Evaluation Tools at Caltech: Instrumentation and Real-Time Data Analysis S C Bradford, T H Heaton and J L Beck ABSTRACT This paper presents a summary of the structural monitoring

More information

Bulletin of the Seismological Society of America, Vol. 83, No. 3, pp. 811-829, June 1993

Bulletin of the Seismological Society of America, Vol. 83, No. 3, pp. 811-829, June 1993 Bulletin of the Seismological Society of America, Vol. 83, No. 3, pp. 811-829, June 1993 ESTIMATION OF STRONG GROUND MOTIONS IN MEXICO CITY EXPECTED FOR LARGE EARTHQUAKES IN THE GUERRERO SEISMIC GAP BY

More information

PIATTAFORME STRATOSFERICHE SIGINT

PIATTAFORME STRATOSFERICHE SIGINT Convegno: Gli Aeromobili a Pilotaggio Remoto: le nuove frontiere del cielo Gruppo di Lavoro PIATTAFORME STRATOSFERICHE SIGINT Ing. Rita Roscigno rita.roscigno@thalesaleniaspace.com 1 SIGINT PAYLOAD OVERVIEW

More information

TRAFFIC NOISE MONITORING IN THE CITY OF MILAN: CONSTRUCTION OF A REPRESENTATIVE STATISTICAL COLLECTION OF ACOUSTIC TRENDS

TRAFFIC NOISE MONITORING IN THE CITY OF MILAN: CONSTRUCTION OF A REPRESENTATIVE STATISTICAL COLLECTION OF ACOUSTIC TRENDS TRAFFIC NOISE MONITORING IN THE CITY OF MILAN: CONSTRUCTION OF A REPRESENTATIVE STATISTICAL COLLECTION OF ACOUSTIC TRENDS Zambon Giovanni, Angelini Fabio, Salvi Diego, Zanaboni Walter and Smiraglia Maura

More information

Title: Zero-pad effects on conditional simulation and application of spatially-varying earthquake motions.

Title: Zero-pad effects on conditional simulation and application of spatially-varying earthquake motions. Cover page Title: Zero-pad effects on conditional simulation and application of spatially-varying earthquake motions. Authors: Nguyen Van Dinh 1 and Biswajit Basu 2 1, 2 School of Engineering, Trinity

More information

Anno 2011_Numero 180. apporti. tecnici

Anno 2011_Numero 180. apporti. tecnici t Anno 2011_Numero 180 apporti tecnici OMBRA: Observing Montello BRoad Activity Deployment of a temporary seismic network to study the deformation process across Montello fault (Eastern Alps) Istituto

More information

UrEDAS, URGENT EARTHQUAKE DETECTION AND ALARM SYSTEM, NOW AND FUTURE

UrEDAS, URGENT EARTHQUAKE DETECTION AND ALARM SYSTEM, NOW AND FUTURE 3 th World Conference on Earthquake Engineering Vancouver, B.C., Canada August -6, 24 Paper No. 98 UrEDAS, URGENT EARTHQUAKE DETECTION AND ALARM SYSTEM, NOW AND FUTURE Yutaka NAKAMURA SUMMARY UrEDAS, Urgent

More information

SEISMIC BEHAVIOR OF A HETEROGENEOUS SOIL WITH UNCERTAIN HEIGHT

SEISMIC BEHAVIOR OF A HETEROGENEOUS SOIL WITH UNCERTAIN HEIGHT SEISMIC BEAVIOR OF A ETEROGENEOUS SOIL WIT UNCERTAIN EIGT M. Badaoui, M.K. Berrah and A. Mébarki 3 Doctor, Université Paris-Est, Laboratoire Modélisation et Simulation Multi Echelle, MSME FRE360 CNRS,

More information

Integrated Data Storage and Database

Integrated Data Storage and Database Integrated Data Storage and Database Philipp Kästli Swiss Seismological Service Related to: NERA REACT COGEAR CCES (2008-2012) Outline Time series storage Seismometer data Other data sources Parameter

More information

THE COSMOS VIRTUAL DATA CENTER

THE COSMOS VIRTUAL DATA CENTER 13 th World Conference on Earthquake Engineering Vancouver, B.C., Canada August 1-6, 2004 Paper No. 1566 THE COSMOS VIRTUAL DATA CENTER Ralph ARCHULETA 1, Jamison STEIDL 2, Melinda SQUIBB 3, SUMMARY The

More information

REAL-TIME EARTHQUAKE HAZARD ASSESSMENT IN CALIFORNIA: THE EARLY POST-EARTHQUAKE DAMAGE ASSESSMENT TOOL AND THE CALTECH-USGS BROADCAST OF EARTHQUAKES

REAL-TIME EARTHQUAKE HAZARD ASSESSMENT IN CALIFORNIA: THE EARLY POST-EARTHQUAKE DAMAGE ASSESSMENT TOOL AND THE CALTECH-USGS BROADCAST OF EARTHQUAKES REAL-TIME EARTHQUAKE HAZARD ASSESSMENT IN CALIFORNIA: THE EARLY POST-EARTHQUAKE DAMAGE ASSESSMENT TOOL AND THE CALTECH-USGS BROADCAST OF EARTHQUAKES Ronald T. Eguchil, James D. Goltz2, Hope A. Seligson3

More information

RF Measurements Using a Modular Digitizer

RF Measurements Using a Modular Digitizer RF Measurements Using a Modular Digitizer Modern modular digitizers, like the Spectrum M4i series PCIe digitizers, offer greater bandwidth and higher resolution at any given bandwidth than ever before.

More information

telemetry Rene A.J. Chave, David D. Lemon, Jan Buermans ASL Environmental Sciences Inc. Victoria BC Canada rchave@aslenv.com I.

telemetry Rene A.J. Chave, David D. Lemon, Jan Buermans ASL Environmental Sciences Inc. Victoria BC Canada rchave@aslenv.com I. Near real-time transmission of reduced data from a moored multi-frequency sonar by low bandwidth telemetry Rene A.J. Chave, David D. Lemon, Jan Buermans ASL Environmental Sciences Inc. Victoria BC Canada

More information

Seismic Observations during September 11, 2001, Terrorist Attack

Seismic Observations during September 11, 2001, Terrorist Attack Seismic Observations during September 11, 2001, Terrorist Attack Won-Young Kim Lamont-Doherty Earth Observatory of Columbia University, Palisades, N. Y. 10964, USA and Gerald R. Baum Environmental Geology

More information

Quarterly Report to the Harry Reid Center NSHE-DOE Cooperative Agreement. Task ORD-FY04-006: Seismic Monitoring PI: John Anderson

Quarterly Report to the Harry Reid Center NSHE-DOE Cooperative Agreement. Task ORD-FY04-006: Seismic Monitoring PI: John Anderson Quarterly Report to the Harry Reid Center NSHE-DOE Cooperative Agreement Task ORD-FY04-006: Seismic Monitoring PI: John Anderson UNR Seismological Laboratory Report Period: 7/01/2006 9/30/2006 October

More information

Application Note Noise Frequently Asked Questions

Application Note Noise Frequently Asked Questions : What is? is a random signal inherent in all physical components. It directly limits the detection and processing of all information. The common form of noise is white Gaussian due to the many random

More information

Earthquake Size and Earthquake Source

Earthquake Size and Earthquake Source ETH-Nachdiplomskurs in angewandten Erdwissenschaften Naturgefahren Erdbebenrisiko 15. - 19. Mai 2000 Dr. Jochen Braunmiller Swiss Seismological Service ETH-Hoenggerberg CH-8093 Zurich Earthquake Size and

More information

PI: Riccardo Lanari (IREA CNR) email:lanari.r@irea.cnr.it

PI: Riccardo Lanari (IREA CNR) email:lanari.r@irea.cnr.it On the exploitation and validation of COSMO-SkyMed interferometric SAR data for digital terrain modelling and surface deformation analysis in extensive urban areas (ID: 1441) Project partners: Istituto

More information