Seismic activity on neighbouring faults as a long-term precursor to large earthquakes in the San Francisco Bay area

Activity in moderate-size earthquakes accelerated in the several decades before some large California earthquakes. This type of precursor seems to require the presence of several major faults in close enough proximity to one another that moderate-size shocks are selectively triggered on surrounding...

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Bibliographic Details
Published inNature (London) Vol. 348; no. 6302; pp. 595 - 599
Main Authors Sykes, Lynn R, Jaumé, Steven C
Format Journal Article
LanguageEnglish
Published London Nature Publishing 13.12.1990
Nature Publishing Group
Subjects
Decades
Earth sciences
Earth, ocean, space
Earthquake prediction
Earthquakes
Earthquakes, seismology
Exact sciences and technology
Fault lines
Geological faults
Internal geophysics
Marine
Precursors
Seismic activity
San Francisco California
San Francisco Bay
California
United States > US
Temporal distribution
San Andreas Fault
Seismic moment
San Francisco Bay
United States
Epicenter
Prediction
California
Magnitude
North America
Forecasting
Failures
Precursor phenomenon
Time distribution
Spatial distribution
Precursors
Earthquakes
Active faults
America
Epicenters
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Summary:Activity in moderate-size earthquakes accelerated in the several decades before some large California earthquakes. This type of precursor seems to require the presence of several major faults in close enough proximity to one another that moderate-size shocks are selectively triggered on surrounding faults during the latter stages of the cycle of strain buildup to large earthquakes.
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ISSN:0028-0836
1476-4687
DOI:10.1038/348595a0