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Published April 1958 | Published
Journal Article Open

Mechanisms of the aftershocks of the Kern County, California, earthquake of 1952


Using directions of first motion of longitudinal waves recorded at near-by stations, the orientation of fault traces and the nature of fault motions have been deduced for fifty-seven earthquakes of the Kern County aftershock series. Unlike the main shock, the aftershocks exhibit considerable strike slip with left-hand strike slip dominating on and to the south of the White Wolf fault and right-hand strike slip and dip slip to the north of it. The two last-mentioned mechanisms represent a secondary strain release, beginning not earlier than thirty-seven hours after the main shock.

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Copyright © 1958, by the Seismological Society of America. Manuscript received for publication March 18, 1957.

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August 19, 2023
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