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Authors: Chiauzzi, L.* 
Masi, A.* 
Mucciarelli, M.* 
Vona, M.* 
Pacor, F.* 
Cultrera, G.* 
Gallovič, F.* 
Emolo, A.* 
Title: Building damage scenarios based on exploitation of Housner Intensity derived from finite faults ground motion simulations
Issue Date: 2010
Keywords: bulding damage
ground motion simulation
Subject Classification04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk 
Abstract: In this paper earthquake damage scenarios for residential buildings (about 4200 units) in Potenza (Southern Italy) have been estimate adopting a probabilistic approach that involves complex source models, site effects, building vulnerability assessment and damage estimation through Damage Probability Matrices (DPMs). The studied area experienced several destructive earthquakes in historical and recent times. Several causative faults of single seismic events, with magnitude up to 7, are known to be close to the town. A seismic hazard approach based on finite faults ground motion simulation techniques has been used to identify the sources producing the maximum expected ground motion at Potenza and to generate a set of ground motion time histories to be used for building damage scenarios. Additionally, site effects, evaluated in the framework of the DPC-INGV S3 project through amplification factors of Housner intensity (IH), have been combined with the bedrock values provided by hazard assessment. Furthermore, a new relationship between IH and macroseismic intensity in terms of EMS98 has been developed. This relationship has been used to convert the Probability Density Functions (PDFs) for IH obtained from synthetic seismograms and convolved by the site effects coefficients into PDFs for EMS98 intensity. Finally, the DPMs approach has been applied to estimate the damage levels of the residential buildings in the urban area of Potenza.
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