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《Yunnan Geographic Environment Research》 2018-05
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EARTHQUAKE DISASTERS CHARACTERISTICS AND ITS RISK TRENDS IN YUNNAN PROVINCE

XU Jing;LIU Hong-jiang;Yunnan University;Leshan Teachers College;Yunnan Economic and Social Big Data Research Institute,Yunnan University of Finance and Economics;  
Through the collection and research of seismic data in Yunnan Province,combined with historical disaster loss data,the earthquake disasters in Yunnan Province have the follow ing characteristics:(1) the spatial distribution is mainly concentrated in the three regions of East,West and Southw est in Yunnan Province;( 2)The five distinct periods of active earthquakes w ere 1913 ~ 1925,1936 ~ 1955,1970 ~ 1976,1988 ~ 1996 and2011 to present; personnel losses w ere nearly 10,000 people per 100 years. The results of seismic activity frequency analysis using Poisson statistics show that the Poisson distribution parameter of MS6. 5 earthquakes in Yunnan Province is 0. 215 4,and its annual probability is 19. 3%,that is,every 5 years occurrence one; the Poisson distribution of MS7. 0 earthquakes. The parameter is 0. 1061,and the annual probability of occurrence is 9. 5%,w hich is characterized by one occurrence every 10 years. Since the MS7. 0 earthquake in Lijiang in 1996,the MS7. 0 earthquake in Yunnan Province has been in a quiet period. It is necessary to strengthen the risk response of the MS7. 0 earthquake,and take the opportunity of the emergency management department being established to strengthen the immediate disaster information. Acquisition and processing,radar equipment construction,air rescue force formation,unified dispatching command platform construction,strengthening self-help and mutual rescue training,strengthening disaster relief training,and concentrated rescue efforts in East and M iddle area.
【Fund】: 云南省高校灾害风险管理重点实验室项目;; 国家自然科学基金项目“金沙江下游干流区泥石流产沙模型”(41161001)
【CateGory Index】: P315.9
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【Citations】
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【Co-citations】
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1 YIN FengLing;JIANG ChangSheng;HAN LiBo;ZHANG Huai;ZHANG Bei;Institute of Geophysics,China Earthquake Administration;Key Laboratory of Computational Geodynamics of Chinese Academy of Sciences, University of Chinese Academy of Sciences;;Seismic hazard assessment for the Red River fault:insight from Coulomb stress evolution[J];地球物理学报;2018-01
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