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Published October 1941 | Published
Journal Article Open

Mechanism of faulting in southern California indicated by seismograms

Gutenberg, B.

Abstract

For about twenty years it has been known that the first impulse due to the direct longitudinal waves of an earthquake produces a compression of the particles in certain areas of the earth's surface, whereas in other extended regions a rarefaction (dilatation) is observed. The pattern depends on the movements at the source. A summary of the earlier literature has been given by Kawasumi (1937). The purpose of the present paper is to investigate such patterns of compressions and dilatations in local shocks in southern and central California and to draw conclusions respecting the mechanism of faulting.

Additional Information

Copyright © 1941, by the Seismological Society of America. Manuscript received for publication April 19, 1941.

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Created:
August 19, 2023
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