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Science 2 April 1976:
Vol. 192. no. 4234, pp. 72 - 74
DOI: 10.1126/science.192.4234.72
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Articles

Oroville Earthquakes: Normal Faulting in the Sierra Nevada Foothills

CHARLES G. BUFE 1, FREDRICK W. LESTER 1, KAREN M. LAHR 1, JOHN C. LAHR 1, LINDA C. SEEKINS 1, and THOMAS C. HANKS 1

1 U.S. Geological Survey, Menlo Park, California 94025

Aftershocks of the Oroville, California, earthquake of 1 August 1975 define a 16- by 12-kilometer fault plane striking north-south and dipping 60 degrees to the west to a depth of 10 kilometers. Focal mechanisms from P-wave first motions indicate normal faulting with the western, Great Valley side downdropped relative to the Sierra Nevada block. The northward projection of the fault plane passes beneath Oroville Dam and crops out under the reservoir.

Submitted on November 12, 1975
Revised on February 4, 1976


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Source parameters for aftershocks of the Oroville, California, earthquake.
J. FLETCHER, J. BOATWRIGHT, L. HAAR, T. HANKS, and A. MCGARR (1984)
Bulletin of the Seismological Society of America 74, 1101-1123
   Abstract »    PDF »
Peak horizontal acceleration and velocity from strong-motion records including records from the 1979 imperial valley, California, earthquake.
W. B. JOYNER and D. M. BOORE (1981)
Bulletin of the Seismological Society of America 71, 2011-2038
   Abstract »    PDF »
Quasi-dynamic models of simple earthquakes: Application to an aftershock of the 1975 Oroville, California, earthquake.
J. BOATWRIGHT (1981)
Bulletin of the Seismological Society of America 71, 69-94
   Abstract »    PDF »
Spectra from high-dynamic range digital recordings of Oroville, California aftershocks and their source parameters.
J. B. FLETCHER (1980)
Bulletin of the Seismological Society of America 70, 735-755
   Abstract »    PDF »
Strong-Motion Accelerograms of the Oroville, California, aftershocks: Data processing and the aftershock of 0350 August 6, 1975.
J. B. FLETCHER, A. G. BRADY, and T. C. HANKS (1980)
Bulletin of the Seismological Society of America 70, 243-267
   Abstract »    PDF »
Induced versus natural earthquakes: Search for a seismic discriminant.
W. A. PEPPIN and C. G. BUFE (1980)
Bulletin of the Seismological Society of America 70, 269-281
   Abstract »    PDF »
Regional seismicity of the Sierran foothills in the vicinity of Oroville, California.
S. M. MARKS and A. G. LINDH (1978)
Bulletin of the Seismological Society of America 68, 1103-1115
   Abstract »    PDF »
Seismic Amplitude Measurements Suggest Foreshocks Have Different Focal Mechanisms than Aftershocks.
A. Lindh, A. LINDH, G. FUIS, and C. MANTIS (1978)
Science 201, 56-59
   Abstract »    PDF »
Shear-wave velocity structure near Oroville, California.
L. C. SEEKINS, D. P. HILL, and T. C. HANKS (1978)
Bulletin of the Seismological Society of America 68, 691-697
   Abstract »    PDF »
P-wave travel-time variations before the August 1, 1975 Oroville, California earthquake.
C. H. CRAMER, C. G. BUFE, and P. W. MORRISON (1977)
Bulletin of the Seismological Society of America 67, 9-26
   Abstract »    PDF »
The August 1975 Oroville earthquakes.
K. M. LAHR, J. C. LAHR, A.G. LINDH, C. G. BUFE, and F. W. LESTER (1976)
Bulletin of the Seismological Society of America 66, 1085-1099
   Abstract »    PDF »
Surface faulting near Lake Oroville, California in August, 1975.
M. M. CLARK, R. V. SHARP, R. O. CASTLE, and P. W. HARSH (1976)
Bulletin of the Seismological Society of America 66, 1101-1110
   Abstract »    PDF »


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