Accelerometric radiation simulation for the September 26, 1997 Umbria-Marche (Central Italy) main shocks
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Abstract
We applied a hybrid stochastic-deterministic method to simulate the strong ground motion characteristics associated with the September 26, 1997 Umbria-Marche main shocks. One hundred different rupture processes on previously inferred fault planes were simulated. The maps of computed PGA (mean values from 100 simulations) show a SE alignment for the 00:33 event and a NW alignment for the 09:40 event, in accordance with the macroseismic data. Moreover, we found a good agreement between the predicted 1ó interval for the PGA values and the data recorded at several accelerometric stations. As a further test, we computed the response spectra at the station Cerreto di Spoleto and found a satisfactory agreement with the synthetic results.
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How to Cite
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Emolo, A.; Zollo, A. Accelerometric Radiation Simulation for the September 26, 1997 Umbria-Marche (Central Italy) Main Shocks. Ann. Geophys. 2001, 44 (3). https://doi.org/10.4401/ag-3579.
