Publication Date:
2018-07-05
Description:
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.
Description:
Published
Description:
2T. Sorgente Sismica
Description:
JCR Journal
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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