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タイトル: 3. A Fault-Origin Model of the Great Kanto Earthquake of 1923 as Deduced from Geodetic Data
その他のタイトル: 3.地殻変動から求めた1923年関東大地震の震源パラメーター
著者: Ando, Masataka
著者(別言語): 安藤, 雅孝
発行日: 1971年9月30日
出版者: 東京大学地震研究所
掲載誌情報: 東京大学地震研究所彙報. 第49冊第1/3号, 1971.9.30, pp. 19-32
抄録: The writer determined fault parameters of the great Kanto earthquake of 1923 on the basis of the geodetic data by triangulation and levelling. Thus he attempted to establish a dislocation model which reasonably explains all the available data on the surface displacements associated with this earthquake. Basically the fault line is assumed to extend from the Kozu area southeastward with its strike N45°W, parallel to the trend of the Sagami trough. The shape of the fault plane is assumed to be a rectangular plane. The fault models which was finally accepted is as follows. total length: 130km, width: 65km, dip. 45° and a fault displacement : 6 m (right lateral strike slip) and 3 m (reverse dip slip). Generally speaking, this earthquake seems to indicate a differential movements of the two crustal plates bounded by the Sagami trough. The fault's dimension, geometry and direction of the slip are all in good harmony with the seismological evidence on wave radiation.|1923年の関東大地震の震源パラノーターを地殻変動を使つて推定した.
URI: http://hdl.handle.net/2261/12576
ISSN: 00408972


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