QIAN FU-YE, ZHAO YU-LIN, ZHAO CHENG-DAcom sh advance. 1981: ON THE CORRELATION OF VARIATION OF EARTH-RESISTIVITY AND UNDERGROUND WATER LEVEL AT SHALLOW DEPTHS OF AROUND THE EPICENT BEFORE AND AFTER THE 1976 TANGSHAN EARTHQUAKE. Acta Seismologica Sinica, 3(2): 135-142.
Citation: QIAN FU-YE, ZHAO YU-LIN, ZHAO CHENG-DAcom sh advance. 1981: ON THE CORRELATION OF VARIATION OF EARTH-RESISTIVITY AND UNDERGROUND WATER LEVEL AT SHALLOW DEPTHS OF AROUND THE EPICENT BEFORE AND AFTER THE 1976 TANGSHAN EARTHQUAKE. Acta Seismologica Sinica, 3(2): 135-142.

ON THE CORRELATION OF VARIATION OF EARTH-RESISTIVITY AND UNDERGROUND WATER LEVEL AT SHALLOW DEPTHS OF AROUND THE EPICENT BEFORE AND AFTER THE 1976 TANGSHAN EARTHQUAKE

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  • Published Date: August 31, 2011
  • This paper gives data for the variation of earth-resistivity at a number of observation stations around the epicentral area since the 1976 Tangshan Earthquake. It also provides data for the change of water level and temperature in some water wells within the same region previous to the earthquake. From these observed facts, one can see that 2-3 years prior to the earthquake, lowering of earth-resistivity value at the 9 stations around Tangshan is an only significant and unique phenomenon since their establishment in 1970. For other time periods, say 1970-1973 and 1977-1979, the average variation of earth-resistivity value has been very slight, essentially unaltered, while after the earthquake it kept at a lower value without recovering.Since the variation of earth-resistivity of the ground is usually considered as caused by the variation of water content in rock layers beneath the ground being investigated and their stress condition and temperature, the observed facts that before the Tangshan Earthquake, underground water level was lowered and the temperature kept almost constant seem to indicate that variation of earth-resistivity is independent of the water content and temperature of the rock medium beneath, but dependent chiefly on its stress condition.
  • [1] 赵玉林、钱复业、唐山7.8级强震前震中周围形变电阻率的下降异常,地球物理学报,21,1978

    [2] E. M.克维亚特柯夫斯基,电法勘探,上册,地质出版社,1959

    [3] B. H.达哈诺夫,电测测井曲线图解释,石油工业出版社,1957

    [4] 郑治真等,根据地下水资料的数字滤波探讨唐山大震的孕育过程,地球物理学报,22,3,1979

    [1] 赵玉林、钱复业、唐山7.8级强震前震中周围形变电阻率的下降异常,地球物理学报,21,1978

    [2] E. M.克维亚特柯夫斯基,电法勘探,上册,地质出版社,1959

    [3] B. H.达哈诺夫,电测测井曲线图解释,石油工业出版社,1957

    [4] 郑治真等,根据地下水资料的数字滤波探讨唐山大震的孕育过程,地球物理学报,22,3,1979
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