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Title: Electrical resistivity variations associated with earthquakes on the San Andreas Fault

Journal Article · · Science; (United States)

A 24% precursory change in apparent electrical resistivity was observed before a magnitude 3.9 earthquake of strike-slip nature on the San Andreas Fault in central California. The experimental configuration and numerical calculations suggest that the change is associated with a volume at depth rather than some near-surface phenomenon. The character and duration of the precursory period agree well with those of other earthquake studies and support a dilatant earthquake mechanism model.

OSTI ID:
6583938
Journal Information:
Science; (United States), Vol. 185:4154
Country of Publication:
United States
Language:
English