Unknown
In:
Geophys. Res. Lett., Leipzig, 3-4, vol. 28, no. 21, pp. 4039-4042, pp. L19606,
(ISBN: 0-12-018847-3)
Publication Date:
2001
Description:
The stress field that existed before a large earthquake can be calculated
based on the known source parameters of the event. This stress field can be used to
define a region that shows greater seismic moment rate changes prior to the event than
arbitrarily shaped regions, allowing us to link two previously unrelated subjects:
Coulomb stress interactions and accelerating seismicity before large earthquakes. As an
example, we have examined all M〉=6.5 earthquakes in California since 1950. While
we illustrate the model using seismicity in California, the technique is general and can
be applied to any tectonically active region. We show that where sufficient knowledge of
the regional tectonics exists, this method can be used to augment current techniques for
seismic hazard estimation.
Keywords:
Seismicity
;
Stress
;
3230
;
Mathematical
;
geophysics
;
Numerical
;
solutions
;
7223
;
Seismology
;
Seismic
;
hazard
;
assessment
;
and
;
prediction
;
Earthquake hazard
;
Earthquake precursor: deformation or strain
;
7230
;
Seismicity
;
and
;
seismotectonic
;
GRL
;
FROTH
;
SRICHWALSKI
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