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Seismicity remotely triggered by the magnitude 7.3 landers, california, earthquake

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Abstract

The magnitude 7.3 Landers earthquake of 28 June 1992 triggered a remarkably sudden and widespread increase in earthquake activity across much of the western United States. The triggered earthquakes, which occurred at distances up to 1250 kilometers (17 source dimensions) from the Landers mainshock, were confined to areas of persistent seismicity and strike-slip to normal faulting. Many of the triggered areas also are sites of geothermal and recent volcanic activity. Static stress changes calculated for elastic models of the earthquake appear to be too small to have caused the triggering. The most promising explanations involve nonlinear interactions between large dynamic strains accompanying seismic waves from the mainshock and crustal fluids (perhaps including crustal magma).

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Seismicity remotely triggered by the magnitude 7.3 landers, california, earthquake
Series title:
Science
Volume
260
Issue:
5114
Year Published:
1993
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Science
First page:
1617
Last page:
1623
Number of Pages:
7