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Long-period ground motion in the epicentral area of major earthquakes

Kanamori, Hiroo (1974) Long-period ground motion in the epicentral area of major earthquakes. Tectonophysics, 21 (4). pp. 341-356. ISSN 0040-1951. doi:10.1016/0040-1951(74)90002-X.

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In view of the potential importance of long-period ground motion in the design of large structures, near-field ground displacement is computed by the elastic dislocation theory for several earthquake fault models. The validity of such computations is confirmed by comparing the computed seismogram with the observed long-period seismogram of the 1923 Kanto earthquake. The ground motions are computed for three hypothetical earthquakes, a hypothetical Kanto earthquake, Tokai earthquake and Nemuro-Oki earthquake. The location and the nature of the faulting of these earthquakes are predicted by plate tectonics and precise earthquake mechanism studies. Major conclusions are: Tokyo may suffer, in the hypothetical Kanto earthquake, ground motions about half as large as those experienced in the 1923 Kanto earthquake; Hamamatsu, a large city on the Tokai coast, may experience in the hypothetical Tokai earthquake ground motions which are as large as, or even larger than, those experienced in the epicentral area of the 1923 Kanto earthquake; the hypothetical Nemuro-Oki earthquake may cause ground motions as large as those experienced in the 1968 Tokachi-Oki earthquake on the coastal cities in Hokkaido.

Item Type:Article
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URLURL TypeDescription
Kanamori, Hiroo0000-0001-8219-9428
Additional Information:© 1974 Published by Elsevier B.V. Accepted 19 September 1973. I thank Tom Hanks for discussions and valuable comments on the manuscript. This research was supported by the Advanced Research Projects Agency of the Department of Defense and was monitored by the Air Force Office of Scientific Research under Contract No. F44620-72-C-0078.
Group:UNSPECIFIED, Division of Geological and Planetary Sciences
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)F44620-72-C-0078
Advanced Research Projects Agency (ARPA)UNSPECIFIED
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Other Numbering System NameOther Numbering System ID
Caltech Division of Geological and Planetary Sciences2338
Issue or Number:4
Record Number:CaltechAUTHORS:20150217-140850764
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Official Citation:Hiroo Kanamori, Long-period ground motion in the epicentral area of major earthquakes, Tectonophysics, Volume 21, Issue 4, March 1974, Pages 341-356, ISSN 0040-1951, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:54882
Deposited By: Ruth Sustaita
Deposited On:17 Feb 2015 22:43
Last Modified:10 Nov 2021 20:39

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