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Published December 1976 | Published
Journal Article Open

Body force equivalents for stress-drop seismic sources

Abstract

The equivalent body forces for a stress-drop seismic source are found. When the isotropic stress drop and one of the three principal stress drops are zero, then the equivalent body forces are the same double couple without moment which would result from a shear dislocation. In general however, all six stress-drop components must be specified as independent functions of time.

Additional Information

© 1976 Seismological Society of America. Manuscript received April 19, 1976. I thank David Harkrider, Paul Richards, and Seth Stein for reading the manuscript and offering many helpful comments. 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 F44620-72-C-0078.

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August 19, 2023
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October 17, 2023