Simulation study of spatiotemporal correlations of earthquakes as a stick-slip frictional instability |
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Authors: | Mori Takahiro Kawamura Hikaru |
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Institution: | Department of Earth and Space Science, Faculty of Science, Osaka University, Toyonaka 560-0043, Japan. |
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Abstract: | Spatiotemporal 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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