Accelerometric radiation simulation for the September 26, 1997 Umbria-Marche (Central Italy) main shocks

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...

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Main Authors: A. Zollo, A. Emolo
Format: Article
Language:English
Published: Istituto Nazionale di Geofisica e Vulcanologia (INGV) 2001-06-01
Series:Annals of Geophysics
Subjects:
Online Access:http://www.annalsofgeophysics.eu/index.php/annals/article/view/3579
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author A. Zollo
A. Emolo
author_facet A. Zollo
A. Emolo
author_sort A. Zollo
collection DOAJ
description 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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spelling doaj.art-348b99f88204434cb8986767562d587c2022-12-22T02:52:18ZengIstituto Nazionale di Geofisica e Vulcanologia (INGV)Annals of Geophysics1593-52132037-416X2001-06-0144310.4401/ag-3579Accelerometric radiation simulation for the September 26, 1997 Umbria-Marche (Central Italy) main shocksA. ZolloA. EmoloWe 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.http://www.annalsofgeophysics.eu/index.php/annals/article/view/3579kinematic source modelstrong motion simulationUmbria-Marche main shocks
spellingShingle A. Zollo
A. Emolo
Accelerometric radiation simulation for the September 26, 1997 Umbria-Marche (Central Italy) main shocks
Annals of Geophysics
kinematic source model
strong motion simulation
Umbria-Marche main shocks
title Accelerometric radiation simulation for the September 26, 1997 Umbria-Marche (Central Italy) main shocks
title_full Accelerometric radiation simulation for the September 26, 1997 Umbria-Marche (Central Italy) main shocks
title_fullStr Accelerometric radiation simulation for the September 26, 1997 Umbria-Marche (Central Italy) main shocks
title_full_unstemmed Accelerometric radiation simulation for the September 26, 1997 Umbria-Marche (Central Italy) main shocks
title_short Accelerometric radiation simulation for the September 26, 1997 Umbria-Marche (Central Italy) main shocks
title_sort accelerometric radiation simulation for the september 26 1997 umbria marche central italy main shocks
topic kinematic source model
strong motion simulation
Umbria-Marche main shocks
url http://www.annalsofgeophysics.eu/index.php/annals/article/view/3579
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AT aemolo accelerometricradiationsimulationfortheseptember261997umbriamarchecentralitalymainshocks