Validation of Predicted Strong Ground Motion Based on Energy Index of Seismic Wave

Validation of Predicted Strong Ground Motion Based on Energy Index of Seismic Wave

A model fault is supposed and strong ground motions are predicted around the fault by stochastic Green's function method to compare indexes such as PGA, PGV and energy index named IED(Incident Energy Density). It is necessary to show the validity of the predicted motions but the indexes such as...

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Veröffentlicht in:Journal of Japan Association for Earthquake Engineering 2012, Vol.12(1), pp.1_31-1_42
Hauptverfasser: HIRAI, Toshiyuki, SAWADA, Sumio
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Sprache:eng ; jpn
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Energy Index
Incident Energy Density
Stochastic Green's function method
Strong Ground Motion Prediction
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container_title Journal of Japan Association for Earthquake Engineering
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creator HIRAI, Toshiyuki
SAWADA, Sumio
description A model fault is supposed and strong ground motions are predicted around the fault by stochastic Green's function method to compare indexes such as PGA, PGV and energy index named IED(Incident Energy Density). It is necessary to show the validity of the predicted motions but the indexes such as PGA and PGV should not be enough to represent the characteristics of earthquake ground motions. In this study, we study the applicability of IED of a seismic wave to estimate validity of the predicted strong ground motion. IED of a predicted strong ground motion has good relation to magnitude of earthquake. The variation of IED due to the phase characteristics of element seismic waves used in stochastic Green's function method or the difference of soil characteristics is less than PGA and PGV. It can be concluded that if IED is added to evaluation indexes, it is possible to estimate more rationally the validity of a predicted strong ground motion.
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subjects Energy Index
Incident Energy Density
Stochastic Green's function method
Strong Ground Motion Prediction
title Validation of Predicted Strong Ground Motion Based on Energy Index of Seismic Wave
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