title: Simulation study of spatiotemporal correlations of earthquakes as a stick-slip frictional instability.
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."
authors.affiliation: Department of Earth and Space Science, Faculty of Science, Osaka University, Toyonaka 560-0043, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Mori
authors.forename: Hikaru
authors.initials: H
authors.lastname: Kawamura