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Prediction of central California earthquakes from soil-gas helium fluctuations

Pure and Applied Geophysics PAGEOPH

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DOI: 10.1007/BF00874605

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Abstract

The observations of short-term decreases in helium soil-gas concentrations along the San Andreas Fault in central California have been correlated with subsequent earthquake activity. The area of study is elliptical in shape with radii approximately 160??80 km, centered near San Benito, and with the major axis parallel to the Fault. For 83 percent of the M>4 earthquakes in this area a helium decrease preceded seismic activity by 1.5 to 6.5 weeks. There were several earthquakes without a decrease and several decreases without a corresponding earthquake. Owing to complex and unresolved interaction of many geophysical and geochemical parameters, no suitable model is yet developed to explain the observations. ?? 1985 Birkha??user Verlag.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Prediction of central California earthquakes from soil-gas helium fluctuations
Series title:
Pure and Applied Geophysics PAGEOPH
DOI:
10.1007/BF00874605
Volume
122
Issue:
2-4
Year Published:
1985
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:
369
Last page:
375