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Science 14 December 1973:
Vol. 182. no. 4117, pp. 1127 - 1129
DOI: 10.1126/science.182.4117.1127
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Articles

Point Mugu, California, Earthquake of 21 February 1973 and Its Aftershocks

W. L. Ellsworth 1, R. H. Campbell 1, D. P. Hill 1, R. A. Page 1, R. W. Alewine III 2, T. C. Hanks 2, T. H. Heaton 2, J. A. Hileman 2, H. Kanamori 2, B. Minster 2, and J. H. Whitcomb 2

1 National Center for Earthquake Research, U.S. Geological Survey, Menlo Park, California 94025
2 Seismological Laboratory, California Institute of Technology, Pasadena 91109

Seismological investigations show that the Point Mugu earthquake involved north-south crustal shortening deep within the complex fault zone that marks the southern front of the Transverse Ranges province. This earthquake sequence results from the same stress system responsible for the deformation in this province in the Pliocene through Holocene and draws attention to the significant earthquake hazard that the southern frontal fault system poses to the Los Angeles metropolitan area.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Estimating Locations and Magnitudes of Earthquakes in Southern California from Modified Mercalli Intensities.
W. H. Bakun (2006)
Bulletin of the Seismological Society of America 96, 1278-1295
   Abstract »    Full Text »    PDF »
Seismicity of California's North Coast.
(2000)
Bulletin of the Seismological Society of America 90, 797-812
Estimating earthquake location and magnitude from seismic intensity data.
W. H. Bakun and C. M. Wentworth (1997)
Bulletin of the Seismological Society of America 87, 1502-1521
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Deformation rates across the Placerita (Northridge Mw = 6.7 aftershock zone) and Hopper Canyon segments of the western transverse ranges deformation belt.
G. J. Huftile and R. S. Yeats (1996)
Bulletin of the Seismological Society of America 86, S3-S18
   Abstract »    PDF »
Local magnitudes and apparent variations in seismicity rates in Southern California.
L. K. HUTTON and L. M. JONES (1993)
Bulletin of the Seismological Society of America 83, 313-329
   Abstract »    PDF »
Seismic characteristics of earthquakes along the offshore extension of the western transverse ranges, California.
A. L. BENT and D. V. HELMBERGER (1991)
Bulletin of the Seismological Society of America 81, 399-422
   Abstract »    PDF »
The 1987 Whittier Narrows Earthquake in the Los Angeles Metropolitan Area, California.
E. Hauksson, E. HAUKSSON, L. M. JONES, T. L. DAVIS, L. K. HUTTON, P. WILLIAMS, A. L. BENT, A. G. BRADY, P. A. REASENBERG, A. J. MICHAEL, et al. (1988)
Science 239, 1409-1412
   Abstract »    PDF »
The 1930 Santa Monica and the 1979 Malibu, California, earthquakes.
E. HAUKSSON and G. V. SALDIVAR (1986)
Bulletin of the Seismological Society of America 76, 1542-1559
   Abstract »    PDF »
Tidal triggering of earthquakes.
T. H. HEATON (1982)
Bulletin of the Seismological Society of America 72, 2181-2200
   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 »
Preseismic and coseismic elevation changes in the epicentral region of the Point Mugu earthquake of February 21, 1973.
R. O. CASTLE, J. P. CHURCH, M. R. ELLIOTT, and J. C. SAVAGE (1977)
Bulletin of the Seismological Society of America 67, 219-231
   Abstract »    PDF »
Aftershocks of the February 21, 1973 Point Mugu, California earthquake.
D. J. STIERMAN and W. L. ELLSWORTH (1976)
Bulletin of the Seismological Society of America 66, 1931-1952
   Abstract »    PDF »
Source parameters of the Pt. Mugu, California, earthquake of February 21, 1973.
D. M. BOORE and D. J. STIERMAN (1976)
Bulletin of the Seismological Society of America 66, 385-404
   Abstract »    PDF »
Time functions appropriate for some aftershocks of the point Mugu, California earthquake of February 21, 1973.
D. KING and D. V. HELMBERGER (1975)
Bulletin of the Seismological Society of America 65, 127-132
   Abstract »    PDF »


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