1945年三河地震 (M_J=6.8) 時の強震動の再現

概要

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We simulate strong ground motions during the 1945 Mikawa earthquake with the JMA magnitude 6.8 based on a characterized source model and the hybrid simulation technique. Relative locations of two asperities on the fault plane are determined following the inverted source model by Kikuchi et al.(2001). Each asperity area is estimated based on the self-similar scaling relationships of seismic moment versus asperity areas and slips by Somerville et al.(1999). Broad-band strong ground motions are calculated by the 3-D finite difference method and the stochastic Green's function method. Finally, the distribution of the instrumental seismic intensity calculated from the synthetic acceleration motions is compared with the distribution of the seismic intensity estimated from the collapse ratio of wooden houses by Iida(1985).
社団法人日本建築学会の論文
2002-09-30