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Variations in stable- isotope ratios of ground waters in seismically active regions of California.

Geophysical Research Letters

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Abstract

Measurements of D and 18O concentrations of ground waters in seismically active regions are potentially useful in earthquake prediction and in elucidating mechanisms operative during earthquakes. Principles of this method are discussed and some preliminary data regarding a magnitude 5.7 earthquake at the Oroville Dam in 1975 and a series of events near San Juan Bautista in 1980 are presented to support the utility of such measurements. After earthquakes, the D content of nearby ground waters increased by several permil while the 18O content remained constant. This increase implies that H2O may have either decomposed or reacted to form molecular H2 at depth. It is emphasized that many areas must be investigated for these effects in order to find a sufficient number of 'sensitive' water wells and springs to permit a truly effective program of earthquake research. -Authors

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Variations in stable- isotope ratios of ground waters in seismically active regions of California.
Series title:
Geophysical Research Letters
Volume
8
Issue:
5
Year Published:
1981
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Geophysical Research Letters
First page:
429
Last page:
432
Number of Pages:
4