Seismicity and focal mechanisms for the southern Great Basin of Nevada and California: 1987 through 1989

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For the calendar year 1987, the southern Great basin seismic network (SGBSN) recorded about 820 earthquakes in the southern Great Basin (SGB). Local magnitudes ranged from 0.2 to 4.2 (December 30, 1987, 22:50:42 UTC at Hot Creek Valley). Five earthquakes epicenters in 1987 within the detection threshold of the seismic network are at Yucca Mountain, the site of a potential national, high-level nuclear waste repository. The maximum magnitude of those five earthquakes is 1.1, and their estimated depths of focus ranged from 3.1 to 7.6 km below sea level. For the calendar year 1988, about 1280 SGB earthquakes were catalogued, ... continued below

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214 p.

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Harmsen, S. C. & Bufe, C. G. December 1991.

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Description

For the calendar year 1987, the southern Great basin seismic network (SGBSN) recorded about 820 earthquakes in the southern Great Basin (SGB). Local magnitudes ranged from 0.2 to 4.2 (December 30, 1987, 22:50:42 UTC at Hot Creek Valley). Five earthquakes epicenters in 1987 within the detection threshold of the seismic network are at Yucca Mountain, the site of a potential national, high-level nuclear waste repository. The maximum magnitude of those five earthquakes is 1.1, and their estimated depths of focus ranged from 3.1 to 7.6 km below sea level. For the calendar year 1988, about 1280 SGB earthquakes were catalogued, with maximum magnitude-4.4 for an Owens Valley, California, earthquake on July 5, 1988. Eight earthquake epicenters in 1988 are at Yucca Mountain, with depths ranging from three to 12 km below sea level, and maximum magnitude 2.1. For the calendar year 1989, about 1190 SGB earthquakes were located and catalogued, with maximum magnitude equal to 3.5 for earthquake about ten miles north of Las Vegas, Nevada, on January 9. No Yucca Mountain earthquakes were recorded in 1989. An earthquake having a well-constrained depth of about 30 km below sea level was observed on August 21, 1989, in eastern Nevada Test Site (NTS).

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214 p.

Notes

OSTI as DE92014882

Source

  • Other Information: PBD: [1991]

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  • Other: DE92014882
  • Report No.: USGS-OFR--91-572
  • Grant Number: AI08-92NV10874
  • DOI: 10.2172/138431 | External Link
  • Office of Scientific & Technical Information Report Number: 138431
  • Archival Resource Key: ark:/67531/metadc618656

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Office of Scientific & Technical Information Technical Reports

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  • December 1991

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 18, 2016, 7:11 p.m.

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Harmsen, S. C. & Bufe, C. G. Seismicity and focal mechanisms for the southern Great Basin of Nevada and California: 1987 through 1989, report, December 1991; Denver, Colorado. (digital.library.unt.edu/ark:/67531/metadc618656/: accessed October 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.