GNGTS 2014 - Atti del 33° Convegno Nazionale

68 GNGTS 2014 S essione 2.1 In particular the final SIGE report has been updated both in the numerical and cartographycal part, generating, for each event located on the Italian territory, a set of 24 figures and maps showing: • event location; • attenuation in terms of macroseimic intensity (Gomez Capera 2007, Pasolini et al., 2008); • attenuation in terms of PGA corresponding to different Ground Motion Prediction Equations [GMPEs: Akkar and Bommer (2007), Bindi et al. (2011), Cauzzi and Faccioli (2008) and Sabetta and Pugliese (2006)]; • seismic catalogues [CPTI11: Rovida et al. (2011)] and seismogenic sources [DISS 3.1.1: Basili et al. (2008) and ���� ������� ����� �������� DISS Working Group (2010)]; • seismic hazard and seismic zonation�; • location and characteristics of the Italian strong motion stations (RAN)�; • absolute and percentage values of collapsed and unusable dwellings�; • absolute and percentage values of the population involved in collapsed (fatalities) and damaged buildings (homeless)�; • number of inhabitants, houses and buildings per each municipality�; • distribution of houses in the vulnerability classes�; • percentage values of houses bu ilt before the seismic zonation of the corresponding municipality�; • territorial vulnerability due to landslides�; • large dams under the governmental jurisdiction�; • risk Industries (legislative decree 334/99)�; • location and characteristics the historical and architectural goods. Fig. 2 shows an example of a map, generated with ESRI ArcMap 10., illustrating: event location, seimogenic sources, historical epicenters, and PGA attenuation. A new version of SIGE has also been checked in the perspective of the use of real-time data provided by the Italian strong motion network, allowing to overcome the issues connected to attenuation anisotropy and lack of site effects consideration. Two GMPEs (Sabetta and Pugliese, 1996; Cauzzi and Faccioli, 2008) have been tested, and the only version currently available of fragility curves correlating the damage level to PGA and matching the building classification of the ISTAT census at national scale, has been considered (Sabetta et al., 1998). As can be seen in Fig. 3, in case of the Lunigiana earthquake of June 2013, the results obtained with the Fig. 3 – Comparison of the results obtained with PGA based simulation scenario, intensity based (old and new version of SIGE, and real data, for the unusable buldings after the Lunigiana earthquake of June 2013. CF refers to the use of the Cauzzi and Faccioli (2008) attenuation relationship, SP to the Sabetta and Pugliese (1996).