"The Many Facets of Seismic Risk", Centro Regionale di Competenza "Analisi e Monitoraggio del Rischio Ambientale" (CRdC-AMRA), Edited by Marisa Pecce, Gaetano Manfredi, Aldo Zollo, 2003
V. Convertito, A. Herrero
A new formulation for the probabilistic seismic hazard analysis is proposed in order to introduce a-priori information about seismic source parameters. In particular, the focal mechanism may be taken into account with a theoretical corrective coefficient applied to the classical attenuation law. The new formulation is also compatible with the use of a de-aggregation technique and allows to extend the design earthquake to the focal mechanism. An application on the Southern Apennines, Italy is shown. The result of the analysis emphasizes the importance of strike-slip events in the seismic hazard context compared to main normal faulting seismic activity characterizing this region.