A time-dependent frictional cellular automation model of seismicity

An improved cellular automation model (CA) was designed for seismic generat ing process in a single fault. Designing an energy exchange between the cir cumstance and the model by loading and considering nonlinear interaction am ong the cells of the model. we tried to understand the mechanism of seismic characteristics. Comparison of present results with the previous cellular automation models shows that the cellular automation model in this paper is much close to nature seismic generating system owing to the improvement of sampling and the introduction of time-dependent frictional mechanism. The results indicate that the sampling method is important for the temporal het erogeneous feature of the man-made catalog and each cells breaking, and tha t the events with small and large magnitude obey quite different magnitude- frequency relationship.