Strong Ground Motion of the 1923 Kanto, Japan Earthquake-Reference-Cited by-同舟云学术

Strong Ground Motion of the 1923 Kanto, Japan Earthquake

Published:2023-09-01 Issue:6 Volume:18 Page:570-577
ISSN:1883-8030
Container-title:Journal of Disaster Research
language:en
Short-container-title:J. Disaster Res.

Author:

Midorikawa Saburoh¹

Affiliation:

1. Professor Emeritus, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan

Abstract

The 1923 Kanto earthquake (MJ=7.9) has great significance for seismic hazard assessments of the Tokyo metropolitan area, because it caused extensive damage to the area. To deepen our understanding of the strong ground motion of the Kanto earthquake, this paper reviewed studies on its observed strong ground motion and found that 1) seismic intensity VI on the Japanese scale (IX or X on the M. M. scale) was widely distributed in an area of approximately 8,000 km2, which is equivalent of that of the 2011 M9 Tohoku earthquake, 2) strong effects of soil amplification on ground motion were suggested by the correlation of the damage distribution with surface geology, 3) the restoration of the scaled-out seismogram indicated that the ground motion at the upland of Tokyo would be roughly 50 cm/s for maximum velocity and 50 cm for maximum displacement, and 4) the ground motion in the epicentral area is unclear, but would be roughly twice or more as strong as that at Tokyo.

Publisher

Fuji Technology Press Ltd.

Subject

Engineering (miscellaneous),Safety, Risk, Reliability and Quality

Reference26 articles.

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3. T. Kakimi, Y. Kinugasa, and M. Kimura, “Neotectonic Map Tokyo,” Geological Survey of Japan, 1973 (in Japanese).

4. A. Imamura, “The Great Kwanto (S. E. Japan) Earthquake of Sept. 1, 1923,” Report of the Imperial Earthquake Investigation Committee, No.100-D, pp. 21-65, 1925 (in Japanese).

5. Japan Meteorological Agency, “Seismic Intensity Database” (in Japanese). https://www.data.jma.go.jp/eqdb/data/shindo/index.html [Accessed March 1, 2023]