An empirical spectral ground-motion model for Iran |
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| Authors: | H Ghasemi M Zare Y Fukushima K Koketsu |
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| Institution: | (1) Earthquake Research Institute, University of Tokyo, Tokyo, Japan;(2) Engineering Seismology Department, International Institute of Earthquake Engineering and Seismology, Tehran, Iran;(3) Shimizu Corporation, Tokyo, Japan |
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| Abstract: | A new ground-motion prediction equation for 5%-damped horizontal spectral acceleration applicable to Iran is presented. On
the basis of analysis of variance (ANOVA), selected West-Eurasian records are added to an existing dataset of Iranian accelerometric
data to yield a ground-motion prediction equation applicable at wider ranges of magnitude and distance. The advantages of
using this model rather than those proposed previously for Iran are discussed by considering the distribution of residuals
against the explanatory variables, magnitude and distance. The applicability of the proposed model, as well as those of several
other models developed for shallow crustal environments, is also investigated by means of statistical tools. The results reveal
the overall suitability of the new model as well as the validity of models developed using mainly Eurasian strong-motion records.
Electronic supplementary material The online version of this article (doi: ) contains supplementary material, which is available to authorized users. |
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| Keywords: | Spectral attenuation relation Seismic hazard analysis Iran |
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