An empirical spectral ground-motion model for Iran

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 equ...

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Bibliographic Details
Published in:Journal of seismology 2009-10, Vol.13 (4), p.499-515
Main Authors: Ghasemi, H., Zare, M., Fukushima, Y., Koketsu, K.
Format: Article
Language:English
Subjects:
Earth and Environmental Science
Earth Sciences
Earthquakes
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Ground motion
Hydrogeology
Mathematical models
Original Article
Risk assessment
Seismology
Structural Geology
Variance analysis
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Summary: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.
ISSN:1383-4649
1573-157X
DOI:10.1007/s10950-008-9143-x