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The Tehachapi Earthquake of July 21, 1952

Housner, G. W. (1952) The Tehachapi Earthquake of July 21, 1952. In: Proceedings of the Symposium on Earthquake and Blast Effects on Structures : Los Angeles, California, June 1952. Earthquake Engineering Research Institute , Los Angeles, pp. 226-232. https://resolver.caltech.edu/CaltechAUTHORS:20161010-160331524

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Abstract

[Introduction] At approximately five o'clock, the morning of July 21, 1952, there occurred a strong earthquake whose center was approximately fifteen miles southwest of the small town of Tehachapi, California (population 2,500). The main shock was followed by numerous small aftershocks and several moderately strong aftershocks were experienced July 23. The main shock was rated by seismologists to have a magnitude of 7.5 on the Gutenberg-Richter magnitude scale. This compares with a magnitude of 7.1 for the Seattle, Washington shock of April 1949, a magnitude of 6.7 for the El Centro, California shock of May 1940 and 6.25 for the Long Beach, California shock of March 1933. The magnitude of an earthquake is a measure of the energy released by the shock in accordance with the following equation: E = 7.4(10)<sup>4</sup> (10)<sup>1.8M</sup> where E is the total energy released by the shock in foot-pounds and M is the magnitude of the shock.


Item Type:Book Section
Record Number:CaltechAUTHORS:20161010-160331524
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20161010-160331524
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70977
Collection:CaltechAUTHORS
Deposited By: Katherine Johnson
Deposited On:10 Oct 2016 23:08
Last Modified:03 Oct 2019 16:02

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