Simulation study of spatio-temporal correlations of earthquakes as a stick-slip frictional instability
Takahiro Mori, Hikaru Kawamura
Abstract
Spatio-temporal correlations of earthquakes are studied numerically on the basis of the one-dimensional spring-block (Burridge-Knopoff) model. As large events approach, the frequency of smaller events gradually increases, while, just before the mainshock, it is dramatically suppressed in a close vicinity of the epicenter of the upcoming mainshock, a phenomenon closely resembling the ``Mogi doughnut''
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