住家被害を利用した1891年濃尾地震の地震動強さ分布の分析

概要

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The distribution of the peak ground velocity (PGV) in and around the Nobi basin during the 1891 Nobi earthquake (MS), which caused unprecedented damage in Japan, was evaluated. The distribution was obtained by combining several kinds of existing seismic intensity maps based on wooden house damage, land deformation, and so on, with vulnerability functions between the PGV and damage ratio of wooden houses during the 1995 Hyogo-ken Nanbu earthquake. As a result, it was found that the area of seismic intensity VII (JMA scale) in which the PGV was greater than 50 cm/s extended to the northern part of the Nobi basin. The evaluated PGV distribution approximately corresponded to the PGV distribution calculated using the fault model of the Nobi earthquake obtained by Mikumo and Ando (1976) and the empirical attenuation relationship.
地域安全学会の論文