skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Detailed microearthquake survey of Long Valley, California, known geothermal resource area, July-September 1981. Final technical report, 30 September 1980-31 June 1983

Abstract

This report presents the results of a detailed microearthquake survey of the geothermal area at Long Valley, California. High quality digital data from a dense 3-component array covering a three-month period during the summer of 1981 have been processed for locations, velocity structure, magnitudes, focal mechanisms, and source parameters. Hypocenter locations determined from this array have estimated errors of 0.5 km in epicenter and 1.0 km in depth relative to one another. Detailed hypocentral locations show two complex zones of seismicity beneath the south moat of the caldera which seems associated with the major hot spring activity within the caldera and could be part of the conduit system feeding hydrothermal waters to these hot springs. Seismic activity at Long Valley appears to be influenced by both regional tectonic stresses and local volcanotectonic activity.

Authors:
; ;
Publication Date:
Research Org.:
California State Dept. of Conservation, Sacramento (USA). Div. of Mines and Geology; California Univ., Riverside (USA). Dept. of Earth Sciences
OSTI Identifier:
5954627
Report Number(s):
DOE/ID/12144-T1
ON: DE85006205
DOE Contract Number:  
FC07-80ID12144
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions are illegible in microfiche products. Original copy available until stock is exhausted. Includes 3 sheets of 48x reduction microfiche. Open-File Report 84-53 SAC
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; LONG VALLEY; MICROEARTHQUAKES; SEISMICITY; CALDERAS; CALIFORNIA; HOT SPRINGS; KGRA; POISSON RATIO; TECTONICS; THERMAL WATERS; EARTHQUAKES; FEDERAL REGION IX; MECHANICAL PROPERTIES; NORTH AMERICA; SEISMIC EVENTS; THERMAL SPRINGS; USA; WATER SPRINGS; Geothermal Legacy; 150201* - Geology & Hydrology of Geothermal Systems- USA- (-1989)

Citation Formats

Cramer, C H, Stierman, D J, and Lee, T C. Detailed microearthquake survey of Long Valley, California, known geothermal resource area, July-September 1981. Final technical report, 30 September 1980-31 June 1983. United States: N. p., 1983. Web. doi:10.2172/5954627.
Cramer, C H, Stierman, D J, & Lee, T C. Detailed microearthquake survey of Long Valley, California, known geothermal resource area, July-September 1981. Final technical report, 30 September 1980-31 June 1983. United States. https://doi.org/10.2172/5954627
Cramer, C H, Stierman, D J, and Lee, T C. 1983. "Detailed microearthquake survey of Long Valley, California, known geothermal resource area, July-September 1981. Final technical report, 30 September 1980-31 June 1983". United States. https://doi.org/10.2172/5954627. https://www.osti.gov/servlets/purl/5954627.
@article{osti_5954627,
title = {Detailed microearthquake survey of Long Valley, California, known geothermal resource area, July-September 1981. Final technical report, 30 September 1980-31 June 1983},
author = {Cramer, C H and Stierman, D J and Lee, T C},
abstractNote = {This report presents the results of a detailed microearthquake survey of the geothermal area at Long Valley, California. High quality digital data from a dense 3-component array covering a three-month period during the summer of 1981 have been processed for locations, velocity structure, magnitudes, focal mechanisms, and source parameters. Hypocenter locations determined from this array have estimated errors of 0.5 km in epicenter and 1.0 km in depth relative to one another. Detailed hypocentral locations show two complex zones of seismicity beneath the south moat of the caldera which seems associated with the major hot spring activity within the caldera and could be part of the conduit system feeding hydrothermal waters to these hot springs. Seismic activity at Long Valley appears to be influenced by both regional tectonic stresses and local volcanotectonic activity.},
doi = {10.2172/5954627},
url = {https://www.osti.gov/biblio/5954627}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jul 01 00:00:00 EDT 1983},
month = {Fri Jul 01 00:00:00 EDT 1983}
}