Rapid response seismic networks in Europe: lessons learnt from the L'Aquila earthquake emergency

Margheriti, Lucia; Chiaraluce, L.; Cultrera, Giovanna; Govoni, Aladino; Moretti, Milena; Bordoni, Paola; Luzi, Lucia; Azzara, R. M.; Valoroso, Luisa; Stefano, Raffaele Di; Mariscal, Armand; Improta, Luigi; Pacor, Francesca; Milana, Giuliano; Mucciarelli, Marco; Parolai, Stefano; Amato, A.; Chiarabba, C.; Gori, Pasquale De; Lucente, Francesco Pio; Bona, M. Di; Pignone, M.; Cecere, Gianpaolo; Criscuoli, F.; Delladio, A.; Lauciani, Valentino; Mazza, Salvatore; Giulio, Giuseppe Di; Cara, F.; Augliera, P.; Massa, Marco; D’Alema, Ezio; Marzorati, S.; Sobiesiak, M.; Strollo, Angelo; Duval, Anne-Marie; Dominique, Pascal; Delouis, Bertrand; Paul, Anne; Husen, Stephan; Selvaggi, G.

doi:10.4401/ag-4953

Cited by 14 publications

(8 citation statements)

References 13 publications

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“…The INGV was in contact with these two groups since the start of the seismic emergency when they had expressed interest in deploying a Broad Band network (BB) to supplement the INGV-SISMIKO network in region. Thus, as in the 1997-98 seismic sequence in Umbria [Amato et al 1998] and in 2009 in Abruzzo [Margheriti et al 2011], and in Emilia 2012 [Moretti et al 2012] we welcomed this international collaboration between European research institutes. This collaboration resulted in two weeks of fieldwork starting at the beginning of September, has led to the installation of an additional 25 BB seismic stations (Fig.…”

Section: Timing Of the Deploymentmentioning

confidence: 84%

SISMIKO: emergency network deployment and data sharing for the 2016 central Italy seismic sequence

Moretti

Pondrelli

Margheriti

et al. 2016

Annals of Geophysics

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At 01:36 UTC (03:36 local time) on August 24th 2016, an earthquake Mw 6.0 struck an extensive sector of the central Apennines (coordinates: latitude 42.70° N, longitude 13.23° E, 8.0 km depth). The earthquake caused about 300 casualties and severe damage to the historical buildings and economic activity in an area located near the borders of the Umbria, Lazio, Abruzzo and Marche regions. The Istituto Nazionale di Geofisica e Vulcanologia (INGV) located in few minutes the hypocenter near Accumoli, a small town in the province of Rieti. In the hours after the quake, dozens of events were recorded by the National Seismic Network (Rete Sismica Nazionale, RSN) of the INGV, many of which had a ML > 3.0. The density and coverage of the RSN in the epicentral area meant the epicenter and magnitude of the main event and subsequent shocks that followed it in the early hours of the seismic sequence were well constrained. However, in order to better constrain the localizations of the aftershock hypocenters, especially the depths, a denser seismic monitoring network was needed. Just after the mainshock, SISMIKO, the coordinating body of the emergency seismic network at INGV, was activated in order to install a temporary seismic network integrated with the existing permanent network in the epicentral area. From August the 24th to the 30th, SISMIKO deployed eighteen seismic stations, generally six components (equipped with both velocimeter and accelerometer), with thirteen of the seismic station transmitting in real-time to the INGV seismic monitoring room in Rome. The design and geometry of the temporary network was decided in consolation with other groups who were deploying seismic stations in the region, namely EMERSITO (a group studying site-effects), and the emergency Italian strong motion network (RAN) managed by the National Civil Protection Department (DPC). Further 25 BB temporary seismic stations were deployed by colleagues of the British Geological Survey (BGS) and the School of Geosciences, University of Edinburgh in collaboration with INGV. All data acquired from SISMIKO stations, are quickly available at the European Integrated Data Archive (EIDA). The data acquired by the SISMIKO stations were included in the preliminary analysis that was performed by the Bollettino Sismico Italiano (BSI), the Centro Nazionale Terremoti (CNT) staff working in Ancona, and the INGV-MI, described below.

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Section: Timing Of the Deploymentmentioning

confidence: 84%

SISMIKO: emergency network deployment and data sharing for the 2016 central Italy seismic sequence

Moretti

Pondrelli

Margheriti

et al. 2016

Annals of Geophysics

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“…1). This sector of the central Apennines is adjacent to the area extensively covered by temporary stations after the M w = 6.3 L'Aquila earthquake (see, for example, Margheriti et al, 2011).…”

Section: The Sulmona Temporary Seismic Survey In the Seismotectonic C...mentioning

confidence: 99%

Temporary seismic monitoring of the Sulmona area (Abruzzo, Italy): quality study of microearthquake locations

Romano¹,

Nardis²,

Garbin³

et al. 2013

Preprint

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Abstract. Thanks to the installation of a temporary seismic network, a microseismicity study has been conducted in the Sulmona area (Abruzzo, Italy) with the aim of increasing the knowledge of seismogenic potential of existing active faults. In this work the first seven months (from 27 May to 31 December 2009) of recorded data have been analysed, over a total period of acquisition of about 30 months. Using a semi-automatic procedure, more than 800 local earthquakes has been detected, which highlight the background seismicity previously unknown. About 70% of these events have been relocated using a 1-D velocity model estimated specifically for the Sulmona area. Phase readings quality is checked and discussed, with respect to weighting schemes used by location algorithms, too. The integration of temporary network data with all the other data available in the region enable us to obtain a statistically more robust dataset of earthquake locations. Both the final hypocentral solutions and phase pickings are released as online Supplement. Local magnitude values of the newly detected events ranges between −1.5 and 3.7 and the completeness magnitude for the Sulmona area during the study period is about 1.1. Duration magnitude coefficients have been estimated as well, for comparison/integration purposes. Local Gutenberg–Richter relationship, estimated from the microseismic data, features low b value, possibly suggesting that the Sulmona area is currently undergoing high stress, in agreement with other recent studies. The time-space distribution of the seismic activity with respect to the known active faults, as well the seismogenic layer thickness, are preliminarily investigated.

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“…The experience of the L'Aquila earthquake in 2009 taught us that coordination between national and international Institutes in the deploying of seismic stations is fundamental to optimize material, human and management resources and scientific results [Margheriti et al 2011]. Today the INGV structure for rapid response to seismic emergency [Moretti et al 2010b] is based on the one that operated during the L'Aquila earthquake, but with an increased number of temporary seismic networks.…”

Section: The Ingv Rapid Response Systemmentioning

confidence: 99%

Rapid response to the earthquake emergency of May 2012 in the Po Plain, northern Italy

Moretti

al.²

2012

Annals of Geophysics

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Rapid-response seismic networks are an important element in the response to seismic crises. They temporarily improve the detection performance of permanent monitoring systems during seismic sequences. The improvement in earthquake detection and location capabilities can be important for decision makers to assess the current situation, and can provide invaluable data for scientific studies related to hazard, tectonics and earthquake physics. Aftershocks and the clustering of the locations of seismic events help to characterize the dimensions of the causative fault. Knowing the number, size and timing of the aftershocks or the clustering seismic events can help in the foreseeing of the characteristics of future seismic sequences in the same tectonic environment. Instrumental rapid response requires a high degree of preparedness. A mission in response to a magnitude (Ml) 6 event with a rupture length of a few tens of kilometers might involve the deployment within hours to days of 30-50 seismic stations in the middle of a disaster area of some hundreds of square kilometers, and the installation of an operational center to help in the logistics and communications. When an earthquake strikes in a populated area, which is almost always the case in Italy, driving the relevant seismic response is more difficult. […]

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Rapid response seismic networks in Europe: lessons learnt from the L'Aquila earthquake emergency

Cited by 14 publications

References 13 publications

SISMIKO: emergency network deployment and data sharing for the 2016 central Italy seismic sequence

SISMIKO: emergency network deployment and data sharing for the 2016 central Italy seismic sequence

Temporary seismic monitoring of the Sulmona area (Abruzzo, Italy): quality study of microearthquake locations

Rapid response to the earthquake emergency of May 2012 in the Po Plain, northern Italy

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