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Synthetic Pattern Distinction of Potential Seismic Focus Areas for the M ≥6 Earthquakes in Central and Eastern Yunnan Province

MAO Yan, YU Wei-xian, WANG Bin (Earthquake Administration of Yunnan Province, Kunming 650041,China)  
Based on the data of seismogeology,geophysics and crustal deformation in contral and eastern Yunnan province in recent years,the 15 characteristic parameters which are closely correlated to strong earthquakes are analysed and selected. Among the 15 parameters,12 are choosed by sieving method of pattern distinction as the final parameters. Using the means of synthetic pattern distinction, 47 potential seismic focus areas for M≥ 6 earthquake from 100 studying areas are determined. Then,27 potential seismic focus areas for M≥7 earthquake are obtained from 49 studying areas in which the M 6 earthquakes have occurred or will occure possibilly. On this foundation, a predictive map of potential seismic source areas for moderate-strong earthquake in Central and eastern Yunnan province is put forward.
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