Statistics – Computation
Scientific paper
Jul 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3413303s&link_type=abstract
Geophysical Research Letters, Volume 34, Issue 13, CiteID L13303
Statistics
Computation
8
Physical Properties Of Rocks: Permeability And Porosity, Physical Properties Of Rocks: Transport Properties, Seismology: Earthquake Dynamics (1242), Seismology: Theory, Seismology: Computational Seismology
Scientific paper
We theoretically study dynamic fault slip taking account of thermoporoelastic effects including inelastic porosity change; the porosity on the fault is assumed to increase inelastically with increasing fault slip. We find in the analysis of a 1D fault model that qualitative nature of system behavior is controlled by a single nondimensional parameter S u , a quantity proportional to the increase rate of inelastic porosity divided by the thickness of shear heating zone. The change of value of S u is found to cause slip-weakening as well as slip-strengthening. It is reported in some studies that the radiation efficiency estimated seismologically exceeds unity for some earthquakes, which contradicts its definition. This paradox can be solved if we assume a relatively large S u value for these earthquakes.
Suzuki Takehito
Yamashita Teruo
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