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Authors: Emolo, A.*
Iannaccone, G.*
Zollo, A.*
Gorini, A.*
Title: Inferences on the source mechanisms of the 1930 Irpinia (Southern Italy) earthquake from simulations of the kinematic rupture process
Issue Date: 2004
Series/Report no.: 47 (6)
Keywords: 1930 Irpinia earthquake
ground motion simulation
kinematic source model
Abstract: We examine here a number of parameters that define the source of the earthquake that occurred on 23rd July 1930 in Southern Italy (in the Irpinia region). Starting from the source models proposed in different studies, we have simulated the acceleration field for each hypothesized model, and compared it with the macroseismic data. We then used the hybrid stochastic-deterministic technique proposed by Zollo et al. (1997) for the simulation of the ground motion associated with the rupture of an extended fault. The accelerations simulated for several sites were associated with the intensities using the empirical relationship proposed by Trifunac and Brady (1975), before being compared with the available data from the macroseismic catalogue. A good reproduction of the macroseismic field is provided by a normal fault striking in Apenninic direction (approximately NW-SE) and dipping 55° toward the SW.
Appears in Collections:04.06.10. Instruments and techniques
Annals of Geophysics

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