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[1]NI Zhe,CHEN Bin,CUI Xingping,et al.Analysis of the Variation of Underground Magnetic Susceptibility Structure during the Seismogenic Process[J].Journal of Seismological Research,2017,40(03):382-387.

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Analysis of the Variation of Underground Magnetic Susceptibility Structure during the Seismogenic Process

Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume: 40 Number of periods: 2017 03 Page number: 382-387 Column: 流动地磁专栏 Public date: 2017-07-23

Title:: Analysis of the Variation of Underground Magnetic Susceptibility Structure during the Seismogenic Process

Author(s):: NI Zhe¹; CHEN Bin²; CUI Xingping¹; GU Jian¹; YOU Wei¹; XU Zengming¹; (1.Yunnan Earthquake Agency,Kunming 650224,Yunnan,China)(2.Institute of Geophysics,China Earthquake Administration,Beijing 100081,China)

Keywords:: magnetic susptibility; earthquake prediction; the Eryuan earthquake

CLC:: P318

DOI:: -

Abstract:: The subject of this paper is based on the March 3,2013 Eryuan M5.5 earthquake occurred in Yunnan.We study on the variation characteristic of underground medium magnetic susceptibility during the seismogenic process,and we analyze the significant change characteristic before the Eryuan earthquake.This study searches short term prediction index of magnetism for earthquake prediction.We apply the ModelVision software to invert the underground magnetic susceptibility structure and its variations of 4 survey lines in the magnetic field total intensity network in the western Yunnan during the 6 periods from 2011 to 2013.The results show that the magnetic susceptibility decreases in the depth of 10～15 km and 15～20 km simultaneously,after that it only becomes increase in the depth of 15～20 km.Meanwhile,the Eryuan earthquake took place.

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Last Update: 2017-07-20