学术
摘 要:
利用1970年以来新疆天山地区和川滇地区中强地震震源机制解，对两区中强地震的错动性质做了对比分析，得出以下两点结论：（1）新疆天山地区中强地震断错性质复杂多样，主要以逆断层型和走滑型地震为主；而川滇地区强震主要以走滑型地震为主。（2）新疆天山地区走滑型地震大多包含倾滑分量，单纯的水平错动地震数量极少；而川滇地区走滑型地震的错动方式主要以水平错动为主，倾滑分量较小。[著者文摘]
文章出处:
《地震研究》-2007年30卷3期 -229-234页
分 类 号:
文献标识码:
A
文章编号:
1000-0666-（2007）03-0229-06
Comparative Analysis of the Focal Mechanism Solutions of the Mid-Strong Earthquakes between Tianshan, Xinjiang Area and Sichuan-Yunnan Area
LONG Hai-ying, NIE Xiao-hong, GAO Guo-ying （ Earthquake Administration ofXinjiang Uygur Autonomous Region, Urumqi 830011, Xinjiang, China）
Abstract:
Using the focal mechanism solutions of the mid-strong earthquakes in the Tianshan, Xinjiang area and Sichuan-Yunnan area since 1970, we comparatively analyzed the faulting features of the mid-strong earthquakes in the two areas. The results show ： （ 1 ） The rupturing features of the mid-strong earthquakes are complex and diverse in the Tianshan, Xinjiang area, which are mainly characterized by thrust and strike-slip faulting; while the strong earthquakes in the Sichuan-Yunnan area are mainly characterized by strike-slip faulting. （2） Most of the strike-slip earthquakes in the Tianshan area contain dip-slip component, and pure horizontally-faulting earthquakes are very few; however, in the Sichuan-Yunnan area, the horizontal faulting is the main rupture way of the strike-slip type earthquake, and dip-slip component is very small.[著者文摘]
Key words:
Tianshan area of Xinjiang, Sichuan-Yunnan area, mid-strong earthquake, focal mechanism solution
基金资助:
新疆地震局联合基金项目（200408）资助.
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