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Science 24 November 1995:
Vol. 270. no. 5240, pp. 1344 - 1347
DOI: 10.1126/science.270.5240.1344
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Reports

Relation of the 1992 Landers, California, Earthquake Sequence to Seismic Scattering

Justin Revenaugh

Measurements of crustal scattering for the area surrounding the 1992 Landers earthquake sequence obtained from regional array recordings of teleseismic events for the 10-year period before the sequence showed that the slip distribution on faults could be deducible from the preshock elastic structure. Scattering intensity correlated strongly with the distribution of aftershocks and slip of the moment magnitude (M(w)) 7.3 Landers main shock, M(w) 6.1 Joshua Tree, and M(w) 6.2 Big Bear events, which implies that aftershocks and slip are structurally controlled and broadly predictable. Scattering within the fault zones was directional and consistent with variable along-strike alignment of stress-induced cracks.


Crustal Imaging Laboratory, Earth Sciences Department, University of California, Santa Cruz, CA 95064, USA.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Evidence of Shallow Fault Zone Strengthening After the 1992 M7.5 Landers, California, Earthquake.
Y. Li, J. E. Vidale, K. Aki, F. Xu, and T. Burdette (1998)
Science 279, 217-219
   Abstract »    Full Text »
Mapping shallow heterogeneity with teleseismic P to Rg scattered waves.
J. Revenaugh and H. Mendoza (1996)
Bulletin of the Seismological Society of America 86, 1194-1199
   Abstract »    PDF »


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