Earthquake swarms and local crustal spreading along major strike-slip faults in California

Pure and Applied Geophysics PAGEOPH
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Abstract

Earthquake swarms in California are often localized to areas within dextral offsets in the linear trend in active fault strands, suggesting a relation between earthquake swarms and local crustal spreading. Local crustal spereading is required by the geometry of dextral offsets when, as in the San Andreas system, faults have dominantly strike-slip motion with right-lateral displacement. Three clear examples of this relation occur in the Imperial Valley, Coso Hot Springs, and the Danville region, all in California. The first two of these areas are known for their Holocene volcanism and geothermal potential, which is consistent with crustal spreading and magmatic intrusion. The third example, however, shows no evidence for volcanism or geothermal activity at the surface. ?? 1978 Birkha??user Verlag.
Publication type Article
Publication Subtype Journal Article
Title Earthquake swarms and local crustal spreading along major strike-slip faults in California
Series title Pure and Applied Geophysics PAGEOPH
DOI 10.1007/BF00879733
Volume 117
Issue 1-2
Year Published 1978
Language English
Publisher location Birkha??user-Verlag
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Pure and Applied Geophysics PAGEOPH
First page 51
Last page 64
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