Near-Fault Strong Ground Motion Simulation of the May 12, 2008, M_W7.9 Wenchuan Earthquake by Dynamical Composite Source Model

详细信息   

• 责任者：Meng Lingyuan (Earth Science College ; Graduate University ; Chinese Academy of Sciences ; Beijing 100049 ; China) ; Shi Baoping
• 刊名：Chinese Journal of Geophysics
• 出版年：2011
• 卷期：54(4)
• 关键词：汶川地震2008 ; Wenchuan earthquake 2008 ; 地面运动 ; ground motion ; 四川 ; Sichuan Province
• 页码：p.1010-1027
• 图表：10 illus., 3 tables, 30 refs.
• 分类号：0500
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

摘要

The Wenchuan earthquake of May 12, 2008, M_W7.9 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.