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Science 17 November 2000:
Vol. 290. no. 5495, pp. 1334 - 1338
DOI: 10.1126/science.290.5495.1334

Reports

Change in the Probability for Earthquakes in Southern California Due to the Landers Magnitude 7.3 Earthquake

Max Wyss,1 and Stefan Wiemer2

The Landers earthquake in June 1992 redistributed stress in southern California, shutting off the production of small earthquakes in some regions while increasing the seismicity in neighboring regions, up to the present. This earthquake also changed the ratio of small to large events in favor of more small earthquakes within about 100 kilometers of the epicenter. This implies that the probabilistic estimate for future earthquakes in southern California changed because of the Landers earthquake. The location of the strongest increase in probability for large earthquakes in southern California was the volume that subsequently produced the largest slip in the magnitude 7.1 Hector Mine earthquake of October 1999.

1 Geophysical Institute, University of Alaska, Fairbanks, AK 99775, USA. E-mail: max{at}giseis.alaska.edu
2 Federal Institute of Technology, CH-8093, Zürich, Switzerland. E-mail: stefan{at}seismo.ifg.ethz.ch


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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
ALM: An Asperity-based Likelihood Model for California.
S. Wiemer and D. Schorlemmer (2007)
Seismological Research Letters 78, 134-140
   Full Text »    PDF »
On the Role of Multiple Interactions in Remote Aftershock Triggering: The Landers and the Hector Mine Case Studies.
A. Ziv (2006)
Bulletin of the Seismological Society of America 96, 80-89
   Abstract »    Full Text »    PDF »
Assessing the Quality of Earthquake Catalogues: Estimating the Magnitude of Completeness and Its Uncertainty.
J. Woessner and S. Wiemer (2005)
Bulletin of the Seismological Society of America 95, 684-698
   Abstract »    Full Text »    PDF »
Fractal Dimension and b-Value on Creeping and Locked Patches of the San Andreas Fault near Parkfield, California.
M. Wyss, C. G. Sammis, R. M. Nadeau, and S. Wiemer (2004)
Bulletin of the Seismological Society of America 94, 410-421
   Abstract »    Full Text »    PDF »
The Maximum Likelihood Estimator of b-Value for Mainshocks.
(2003)
Bulletin of the Seismological Society of America 93, 2082-2088
Seismic, structural, and individual factors associated with earthquake related injury.
C Peek-Asa, M Ramirez, H Seligson, and K Shoaf (2003)
Inj. Prev. 9, 62-66
   Abstract »    Full Text »    PDF »
Properties of the Aftershock Sequence of the 1999 Mw 7.1 Hector Mine Earthquake: Implications for Aftershock Hazard.
(2002)
Bulletin of the Seismological Society of America 92, 1227-1240
Interactions between the Landers and Hector Mine, California, Earthquakes from Space Geodesy, Boundary Element Modeling, and Time-Dependent Friction.
(2002)
Bulletin of the Seismological Society of America 92, 1450-1469
Transient Stress-Coupling Between the 1992 Landers and 1999 Hector Mine, California, Earthquakes.
(2002)
Bulletin of the Seismological Society of America 92, 1470-1486



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Science. ISSN 0036-8075 (print), 1095-9203 (online)