Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
Online ISSN : 1883-8944
Print ISSN : 1884-2399
Study on tsunami source model of scenario earthquakes in Japan sea considering fault asperity
Makoto NEMOTOShiro TAKASEDaisuke HASEBETakashi YOKOTA
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2009 Volume 65 Issue 1 Pages 346-350

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Abstract

With the progress of recent seismological research, we have understood that slip distribution of earthquake fault rupture is generally heterogeneous and has fault asperity. However this heterogeneity of fault slip has not been considered enough in scenario earthquakes of tsunami prediction. In this study (1) we performed inversion analyses of past three large earthquakes in Japan sea (1964 Niigata, 1983 Nihonkai-Chubu and 1993 Hokkaido Nansei-Oki) using tsunami height data in order to investigate the characteristics of slip heterogeneity, (2) based on the inversion results, we proposed a modeling procedure of fault asperity on tsunami source model of scenario earthquakes.

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© 2009 Japan Society of Civil Engineers
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