Study on Recent Tectonic Stress Field in oft-com:office:smarttags" />Yunnan
详细信息
- 责任者：Qian Xiaodong (Earthquakes Administration of Yunnan Province ; Kunming 650224 ; China) ; Qin Jiazheng
- 刊名：Seismology and Geology
- 出版年：2011
- 卷期：33(1)
- 关键词：震源机制 ; focal mechanism ; 构造应力场 ; tectonic stress field ; 云南 ; Yunnan Province
- 页码：p.91-106
- 图表：9 illus., 2 tables, 27 refs.
- 分类号：0500
- 出版序号：20120089
- issnNo：ISSN0253-4967
- isbnNo：CN11-2192/P
摘要
In this paper, using focal mechanism solutions of moderate-strong earthquakes in Yunnan Province and its adjacent areas, the authors discussed in detail the earthquake fault types and the characteristics of modern tectonic stress field in Yunnan Province. The results show that most moderate-strong earthquakes occurring in Yunnan Province are of the strike-slip type, amounting to 80% of the total. Normal faulting and normal with strike-slip and reverse and reverse with strike-slip earthquakes are almost equivalent in proportion, about 8% each, respectively. The tectonic stress field of Yunnan is near-horizontal, and the dips of earthquake fault planes are large.
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