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| Titel |
OGS improvements in 2012 in running the North-eastern Italy Seismic Network: the Ferrara VBB borehole seismic station |
| VerfasserIn |
D. Pesaresi, M. Romanelli, C. Barnaba, P. L. Bragato, G. Durì |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: Improving seismic networks performances: from site selection to data integration (EGU2013 SM1.4/GI1.6 session) ; Nr. 36 (2014-07-22), S.61-67 |
| Datensatznummer |
250121284
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| Publikation (Nr.) |
 copernicus.org/adgeo-36-61-2014.pdf |
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| Zusammenfassung |
The Centro di Ricerche Sismologiche (CRS, Seismological Research Centre) of
the Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS,
Italian National Institute for Oceanography and Experimental Geophysics) in
Udine (Italy) after the strong earthquake of magnitude M=6.4 occurred in
1976 in the Italian Friuli-Venezia Giulia region, started to operate the
North-eastern Italy Seismic Network: it currently consists of 17 very
sensitive broad band and 18 simpler short period seismic stations, all
telemetered to and acquired in real time at the OGS-CRS data centre in
Udine. Real time data exchange agreements in place with other Italian,
Slovenian, Austrian and Swiss seismological institutes lead to a total
number of about 100 seismic stations acquired in real time, which makes the
OGS the reference institute for seismic monitoring of North-eastern Italy.
The south-western edge of the OGS seismic network (Fig. 1) stands on the Po
alluvial basin: earthquake localization and characterization in this area is
affected by the presence of soft alluvial deposits. OGS ha already
experience in running a local seismic network in high noise conditions
making use of borehole installations in the case of the micro-seismicity
monitoring of a local gas storage site for a private company. Following the
ML = 5.9 earthquake that struck the Emilia region around Ferrara in Northern
Italy on 20 May 2012 at 02:03:53 UTC, a cooperation of Istituto Nazionale
di Geofisica e Vulcanologia, OGS, the Comune di Ferrara and the University
of Ferrara lead to the reinstallation of a previously existing very broad
band (VBB) borehole seismic station in Ferrara. The aim of the OGS
intervention was on one hand to extend its real time seismic monitoring
capabilities toward South-West, including Ferrara and its surroundings, and
on the other hand to evaluate the seismic response at the site.
We will describe improvements in running the North-eastern Italy Seismic
Network, including details of the Ferrara VBB borehole station configuration
and installation, with first results. |
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