Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/3194
AuthorsMorasca, P.* 
Zolezzi, F.* 
Spallarossa, D.* 
Luzi, L.* 
TitleGround motion models for the Molise region (Southern Italy)
Issue Date2007
DOI10.1016/j.soildyn.2007.06.001
URIhttp://hdl.handle.net/2122/3194
Keywordsground motion predictive equations
Molise earthquake
Subject Classification04. Solid Earth::04.06. Seismology::04.06.04. Ground motion 
AbstractThe aim of this paper is to evaluate empirical attenuation relationships in order to validate peak values and pseudo-velocity spectra to calibrate shaking scenarios for the Molise area, which was struck by two earthquakes of Mw ¼ 5.7 (INGV-Harvard European- Mediterranean Regional Centroid-Moment tensor project) on October 31st and November 1st, 2002. Before the earthquake occurrence this region was classified as not hazardous, according to the former Italian seismic code. After the main-shocks, felt in many towns of the Molise and Puglia regions, a strong motion and a seismic temporary network were installed in the epicentral area and surrounding regions. This allowed the collection of a large data set, useful to characterize this area. The joint velocity-acceleration data set has been used to derive ground motion models for peak ground acceleration, peak ground velocity, and pseudo-velocity response spectra for both maximum horizontal and vertical components of the motion. The results obtained for the Molise area have been compared with the attenuation pattern of the Umbria-Marche region (central Italy) and the Italian territory. Remarkable differences have been observed leading to a discussion of the possible regional dependence of ground motion.
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