Temporal limits of the power law aftershock decay rate
نویسندگان
چکیده
منابع مشابه
Power-law rheology controls aftershock triggering and decay
The occurrence of aftershocks is a signature of physical systems exhibiting relaxation phenomena. They are observed in various natural or experimental systems and usually obey several non-trivial empirical laws. Here we consider a cellular automaton realization of a nonlinear viscoelastic slider-block model in order to infer the physical mechanisms of triggering responsible for the occurrence o...
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A constitutive law for rock behaviors including the brittle, transient and steady-state behaviors is derived to recognize the temporal seismicity patterns on surface displacement or prior and subsequent to mainshocks, and formulated as the relaxation modulus (i.e., the ratio of stress to strain) following a temporal power-law relaxation. This constitutive law is transformable into the empirical...
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15 صفحه اولAnomalous early aftershock decay rate of the 2004 Mw6.0 Parkfield, California, earthquake
[1] We analyze the seismicity rate immediately after the 2004 Mw6.0 Parkfield, California, earthquake from nearsource seismograms. By scrutinizing high-frequency signals, we can distinguish mainshock coda from early aftershocks occurring as soon as 30 s after the mainshock. We find, as expected, that a significant fraction of aftershocks in the first few hours after the main shock are missing i...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Solid Earth
سال: 2002
ISSN: 0148-0227
DOI: 10.1029/2002jb001868