CRUSTAL STRUCTURE AND EARTHQUAKE DISTRIBUTION OF THE TECTONIC ZONE IN EASTERN SICHUAN AND WESTERN YUNNAN PROVINCES
Fu Weizhou, He Rizheng(Changchun Univ.of Sci.and Tech.,Changchun 130026) Qiu Hu(Seismological Bureau of Tianjin, Tianjin 300201)
In this paper, the date of predecessors has been used to analyse relation between the structure of the crust-upper mantle and earthquake distribution in tectonic zone of western Sichuan and eastern Yunnan provinces. The results show that some characteristics of crust-upper mantle structure of tectonic zone of western Sichuan and eastern Yunnan provinces are similar to Qinghai-Xizang plateau. The earthquake active mainly distributes along the An'ning River fault zone and Xiaojiang fault zone. Its hypocenter in the field of Yongren, Dukou and Huili is more shallow than its circumference.
【CateGory Index】： P315.2