Stress Field and Modeling of Instability Mechanism of Yushu M_S7.1 Earthquake

详细信息   

• 责任者：Wang Lianjie (Institute of Geomechanics ; Chinese Academy of Geological Sciences ; Beijing 100081 ; China) ; Wang Wei
• 刊名：Chinese Journal of Geophysics
• 出版年：2011
• 卷期：54(11)
• 关键词：玉树地震2010 ; Yushu earthquake 2010 ; 数值模拟 ; numerical simulation ; 青海 ; Qinghai Province
• 页码：p.2779-2787
• 图表：13 illus., 1 table, 26 refs.
• 分类号：0500
• 出版序号：20122257
• issnNo：ISSN0001-5733
• isbnNo：CN11-2074/P

摘要

The stress field and velocity field in Yushu region are analyzed. On this basis, the earthquake mechanism of magnitude M_S7.1 Yushu earthquake 2010 is simulated by numerical method with strain softening model. The stress drop, energy release amount, the magnitude of dislocation of fault, and earthquake recurrence intervals are given by modeling. Comparison of the modeling results with the results of geologic survey in the field shows that they are in good agreement.