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California earthquakes: Why only shallow focus?

Science

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Abstract

Frictional sliding on sawcuts and faults in laboratory samples of granite and gabbro is markedly temperature-dependent. At pressures from 1 to 5 kilobars, stick-slip gave way to stable sliding as temperature was increased from 200 to 500 degrees Celsius. Increased temperature with depth could thus cause the abrupt disappearance of earthquakes noted at shallow depths in California.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
California earthquakes: Why only shallow focus?
Series title:
Science
Volume
168
Issue:
3939
Year Published:
1970
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Science
First page:
1573
Last page:
1575
Number of Pages:
3