Journal
JOURNAL OF EARTHQUAKE ENGINEERING
Volume 16, Issue 8, Pages 1230-1247Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/13632469.2012.685211
Keywords
Ground Motion; Simulation; Near-Fault; Stochastic Method; Validation
Funding
- University of Kashan [547/1]
- Japan Society for the Promotion of Science at the University of Tokyo
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The aim of this article is to examine the validity of simulating near-fault ground motions using stochastic finite-fault methods. We used the comprehensive database available from the 1999 Chi-Chi earthquake. We simulated accelerograms, peak ground motions, and response spectra from 35 strong motion stations within a distance of about 10 km from the rupture plane. The simulated results are in good agreement with the observed records for all frequencies larger than about 1 Hz, whereas at lower frequencies and very close-to-fault distances, the amplitudes of these parameters are systematically under-predicted. We believe that the observed mismatch results from near-fault effects and surface waves.
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