2015年内蒙古阿拉善MS5.8地震前地电阻率变化特征研究

Abstract

Abstract: The M_S5.8 earthquake occurred at Alashan Zuoqi of Inner Mongolia, China. Six earth resistivity variation stations located about 500 km from the epicenter of the earthquake were discussed and analyzed. The trend of earth resistivity decreases about one year prior to the Alashan earthquake at Shizuishan, Yinchuan, Haiyuan and Guyuan. Especially, earth resistivity of Shizuishan, the nearest station from the epicenter, shows the maximum amplitude of decline. Earth resistivity of Shizuishan, Yinchuan, Haiyuan, Guyuan show distorted anomalies in annual variation. The relative mean square deviation of earth resistivity shows sudden jump 1~3 months prior to this earthquake.

Key words: Earth resistivity, Annual variation distortion, Relative mean square deviation, The 2015 Alashan Zuoqi Earthquake

CLC Number:

P315.7

YE Qing,ZHANG Yi,HUANG Xing-hui,YU Dan,FAN Ye,LIU Gao-chuan. Characteristics of Resistivity Variations before the April 15, 2015 Alashan Zuoqi M_S5.8 Earthquake[J]. EARTHQUAKE, 2017, 37(4): 123-133.

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Characteristics of Resistivity Variations before the April 15, 2015 Alashan Zuoqi M_S5.8 Earthquake

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Characteristics of Resistivity Variations before the April 15, 2015 Alashan Zuoqi MS5.8 Earthquake

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Characteristics of Resistivity Variations before the April 15, 2015 Alashan Zuoqi M_S5.8 Earthquake