Effect of frictional healing on the scaling of seismicity

Details Effect of frictional healing on the scaling of seismicity Effect of frictional healing on the scaling of seismicity

Oct 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997georl..24.2527w&link_type=abstract

Geophysical Research Letters, Volume 24, Issue 20, p. 2527-2530

Physics

1

Seismology: Seismicity And Seismotectonics

Scientific paper

A 1D Burridge-Knopoff model, with velocity-dependent friction, is used to study the effect of frictional healing on the scaling of seismicity. When a mass element stops motion, the frictional sliding strength in the model is considered to be linearly increased at a healing rate, h, from dynamic friction to static friction. The ratio of the frictional healing rate to the tectonic loading rate, LV, is considered to be a factor. Results show that when h/LV>1, the frequency-magnitude (FM) distributions of model events exhibit a Gutenberg-Richter-type scaling, and the related b-value is relatively insensitive to h/LV. When h/LV=1, the pattern of the FM relation and the related b-value somewhat change. However, the ratio h/LV is only a minor factor in affecting the FM scaling.

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