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Outline of geophysical investigations on the great earthquake in the south-west Japan on Dec. 21, 1946

Pacific Geological Surveys 508

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Abstract

In in the early morning of Dec. 21, 1946, a great destructive earthquake occurred in southern-western Japan. According to the seismogram obtained in our university, the earthquake motion began at Tokyo from 4 h 20 m 10.4 s on Dec. 21, 1946. The maximum amplitude of NS, EW, and up-down components of the earthquake motion at Tokyo was 12.0 mm, 14.0 mm and 3.0 mm respectively, while the initial motion was composed of 80 μ south, 67 μ west and 20 μ down movements.

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Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Unnumbered Series
Title:
Outline of geophysical investigations on the great earthquake in the south-west Japan on Dec. 21, 1946
Series title:
Pacific Geological Surveys
Series number:
508
Year Published:
1947
Language:
English
Publisher:
U.S. Geological Survey, Pacific Geological Surveys
Publisher location:
Tokyo, Japan?
Description:
81 p.
Country:
Japan
Additional Online Files(Y/N):
N