Near-Fault Strong Ground Motion Simulation of the May 12, 2008, MW7.9 Wenchuan Earthquake by Dynamical Composite Source Model
摘要
The Wenchuan earthquake of May 12, 2008, MW7.9 occurred in Sichuan Province of western China with the epicenter at longitude 103.4°E and latitude 31.0°N. In this paper, a modified composite source model, named as dynamical composite source model (DCSM), has been developed to simulate near-fault strong ground motion with associated fault rupture properties from a kinematic point of view. In fact, the numerical modeling developed in this study has the potential application in the ground motion estimation/prediction for the earthquake engineering purpose. Furthermore, the numerical algorithm could also be used to generate the near-real-time shaking map in the implementation level if incorporated current finite fault inverse technique.