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《PLATEAN EARTHQUAKE RESEARCH》 1999-03
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THE PRECURSOR AND MECHANISM OF TELLURIC FIELD BEFORE EARTHQUAKE

Chen Youfa Ma Qinzhong ① Zhang Jie Ding Hui Xue Shunzhang (Lanzhou Institute of Seismology,CSB, Lanzhou 730000) (Lanzhou University,Lanzhou 730000) ① Zhao Fengping (Chengyang Seismological Office of Qingdao City,Qingdao 266109)  
In this paper,the authors have studied the precursor and machanism of telluric field before earthquake.The results show that: 1.The range of the telluric precursor before M≥5.0 earthquakes is 290km around the observation area;2.The deformation、rupture and friction and media polarization are one of the reasons of the telluric precursor.
【Fund】: 地震科学联合基金
【CateGory Index】: P315.722
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