Abstract:At present,two main stochastic models,point-source model and finite-fault model,are adopted to simulate ground motions. In this article,the stochastic point-source model is adopted to simulate the minor-moderate magnitude Sunan earthquake (ML=4.5,19 December 1988) and the result is reasonable. The stochastic point-source model and finite-fault model are used to simulate near-source strong ground motions for Sunan strong earthquake (Ms=5.7,22 November 1988),and the results show that the finite-fault effect should be considered in near-source ground motion estimation.
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