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Journal: Earthquake Research In China  2011 No.2  Share to Sinaweibo  Share to QQweibo  Share to Facebook  Share to Twitter    clicks:928   
Title:
Preliminary Study on the Relationship between the M_s8.0 Wenchuan Earthquake of 2008 and the Anomalies of Earth Resistivity Observed at Qingdao Seismic Station
Author: Zhang Jihong Zhao Guoze Wang Jinsheng Tang Tingmei and Qi Lijie
Adress: Earthquake Administration of Shandong Province，Jinan 250014，China
Abstract: Near-surface earth resistivity and underground water level anomalies were recorded at Qingdao seismic observatory of Shandong Province before and after the MS8. 0 Wenchuan Earthquake of May 12，2008． The observed data of earth resistivity at the observatory revealed that the underground water level dropped and the resistivity increased． It is postulated that in the special tectonic setting at Qingdao observatory，the variation of stress and strain caused the change of water level beneath the station，thus，leading to the variation of earth resistivity． The relationship between the variation of stress field and the change of earth resistivity before earthquake is analyzed．
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