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JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Self-similar slip pulses during rate-and-state1
 

Summary: JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/,
Self-similar slip pulses during rate-and-state1
earthquake nucleation2
Allan M. Rubin
Department of Geosciences, Princeton University, Princeton, New Jersey,3
USA4
Jean-Paul Ampuero
Seismological Laboratory, Caltech, Pasadena, California, USA5
A. M. Rubin, Department of Geosciences, Princeton University, Princeton, NJ 08544, (email:
arubin@princeton.edu)
D R A F T July 6, 2009, 9:52am D R A F T
X - 2 RUBIN AND AMPUERO: SLIP PULSES DURING EARTHQUAKE NUCLEATION
Abstract. For a wide range of conditions, earthquake nucleation zones6
on rate- and state-dependent faults that obey either of the popular state evo-7
lution laws expand as they accelerate. Under the "slip" evolution law, which8
experiments show to be the more relevant law for nucleation, this expansion9
takes the form of a unidirectional slip pulse. In numerical simulations these10
pulses often tend to approach, with varying degrees of robustness, one of a11
few styles of self-similar behavior. Here we obtain an approximate self-similar12
solution that accurately describes slip pulses growing into regions initially13

  

Source: Ampuero, Jean Paul - Division of Geological and Planetary Sciences, California Institute of Technology

 

Collections: Geosciences