The Focal Mechanism and Characteristic of Stress Field in the Zipingpu Area before the M_S8.0 Wenchuan Earthquake |
| |
| Authors: | Zhang Yongjiu and Zhang Zhiwei |
| |
| Institution: | Zhang Yongjiu and Zhang Zhiwei Earthquake Administration of Sichuan Province,Chengdu 610041,China |
| |
| Abstract: | Based on seismic wave records of the Chengdu digital seismic network and Zipingpu reservoir digital seismic network from August 16,2004 to May 12,2008 when the Wenchuan MS8.0 earthquake occurred,the parameters of focal mechanisms of 486 earthquakes with magnitude larger than M1.6 in the Zipingpu reservoir area were calculated using amplitude ratio method,meanwhile the temporal-spatial variation characteristics of mechanisms and stress field were analyzed based on these parameters.Results show a low ratio of... |
| |
| Keywords: | Zipingpu reservoir Wenchuan earthquake Focal mechanism Stress field |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《中国地震研究》浏览原始摘要信息 |
| 点击此处可从《中国地震研究》下载免费的PDF全文 |
