A STUDY ON STRONG MOTION CHARACTERISTICS OF THE 2000 ISHIKAWA-KEN SEIHO-OKI, JAPAN EARTHQUAKE

Abstract

Peak ground acceleration of K-NET, KiK-net records of the 2000 Ishikawa-ken seiho-oki, Japan earthquake were relatively large and regionally biased. Its causes were examined from source effect of the earthquake, path and site effects in the Hokuriku region. We clarified that the relatively large peak ground accelerations were caused from the relatively large stress drop of this earthquake. The spatial distribution of peak ground acceleration seems to depend on differences of Qs-value and site effect in each region.