Changes in the discharge characteristics of thermal springs and fumaroles in the Long Valley Caldera, California, resulting from earthquakes on May 25-27, 1980
Open-File Report
81-203
By: M.L. Sorey and Mark D. Clark
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Abstract
Changes in flow rate and turbidity have been observed and measured in hot springs in the Long Valley caldera, California, following earthquakes with magnitudes up to 6.3 in May 1980. Increases in flow rate of some hot springs occurred within minutes of the earthquakes, followed by more gradual decreases in flow rate to pre-earthquake levels. Spring temperatures and chemistries also show no long-term variations following earthquakes. Transient changes in discharge characteristics of the hot springs appear to result from increases in the permeability of fault conduits transmitting the hot water to the surface. (USGS)
Suggested Citation
Sorey, M., Clark, M.D., 1981, Changes in the discharge characteristics of thermal springs and fumaroles in the Long Valley Caldera, California, resulting from earthquakes on May 25-27, 1980: U.S. Geological Survey Open-File Report 81-203, iv, 25 p. ;28 cm., https://doi.org/10.3133/ofr81203.
ISSN: 2331-1258 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Changes in the discharge characteristics of thermal springs and fumaroles in the Long Valley Caldera, California, resulting from earthquakes on May 25-27, 1980 |
| Series title | Open-File Report |
| Series number | 81-203 |
| DOI | 10.3133/ofr81203 |
| Year Published | 1981 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey, |
| Description | iv, 25 p. ;28 cm. |