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Microearthquake activity adjacent to the Rocklin pluton near Auburn, California

McNally, K. C. and Simila, G. W. and Von Dollen, F. J. (1978) Microearthquake activity adjacent to the Rocklin pluton near Auburn, California. Bulletin of the Seismological Society of America, 68 (1). pp. 239-243. ISSN 0037-1106. https://resolver.caltech.edu/CaltechAUTHORS:20140812-133132958

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Abstract

The occurrence of the Oroville earthquake (M_L = 5.7) of August 1, 1975 heightened interest in the seismotectonics of the Sierra foothills region and particularly the Foothills fault system. Clark (1960) recognized the Foothills fault system as being a major structural feature of the western Sierra Nevada. An 11-week reconnalssance microearthquake study was conducted by Woodward-Clyde Consultants (WCC) for the U.S. Bureau of Reclamation (USBR) to assess the seismic activity of the Sierra foothills 75 km S-SE of Oroville near Auburn, California. Microearthquake activity was detected in the Rocklin-Auburn region with eight events recorded during July 1 to July 24 and seven events during August 15 to October 8, 1976 (see Figure 1). The mobile seismic array consisted of eight Sprengnether MEQ-800 portable seismographs with Mark Products L-4C vertical seismometers. Data recordings were normally 48 hours in length, with a record speed of 1 mm/sec.


Item Type:Article
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http://bssa.geoscienceworld.org/content/68/1/239.full.pdf+htmlPublisherArticle
Additional Information:Copyright © 1978, by the Seismological Society of America. Manuscript received May 11, 1977. We gratefully thank the U.S. Bureau of Reclamation for support in conducting this study, and the U.S. Geological Survey and the California Division of Mines and Geology for generously sharing data. We sincerely thank P. Corbett, B. Foxall, F. Arioli, and B. Todd for field work; B. Munden and V. Chernock for preliminary data processing; and R. Thompson for technical instrumentation assistance. Woody Savage, Tom Turcotte, and Don Tocher provided helpful comments and suggestions.
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U.S. Bureau of ReclamationUNSPECIFIED
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Caltech Division of Geological and Planetary Sciences2925
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Record Number:CaltechAUTHORS:20140812-133132958
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140812-133132958
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ID Code:48413
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:12 Aug 2014 21:03
Last Modified:03 Oct 2019 07:03

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