著者

池田 孝 加藤 研一 植竹 富一 敦賀 隆史

出版者

日本建築学会

雑誌

日本建築学会構造系論文集 (ISSN:13404202)

巻号頁・発行日

vol.73, no.633, pp.1951-1958, 2008-11-30 (Released:2009-10-28)

参考文献数

30

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Fault models of the 1938 Shioyazaki-oki earthquakes, event 1 (May 23) and event 2 and 3 (Nov. 5), are characterized using the slip distributions on the fault plane by waveform inversion analysis. Stress parameters of each asperity Δσa are estimated as 37MPa for event 1 and 22MPa for event 2 and 3 from empirical Green's function method (EGFM) by simulating the seismic intensity of JMA observation stations which locate in near fault region. Short-period spectral level of event 1 is higher than those of event 2 and 3 which are as high as that of the 1978 Miyagi-ken-oki earthquake. The spatial distribution of seismic intensity 5 for each event is well reproduced by EGFM using the proposed fault model in this study.