Creep Response of the Hayward Fault to Stress Changes Caused by the Loma Prieta Earthquake

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Science  27 Jun 1997:
Vol. 276, Issue 5321, pp. 2014-2016
DOI: 10.1126/science.276.5321.2014

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In 1996, an 18-millimeter creep event, the largest ever observed on the Hayward fault, occurred between surveys 63 days apart. This event marked the end of a period of severely reduced creep on the southern part of the fault that began after the 1989 Loma Prieta, California, earthquake. The reduction in creep was consistent with elastic models for earthquake-induced static stress changes on the Hayward fault. These data suggest that creep observations can indicate regional stress changes of about 1 bar or less.

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