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TANG SHUNSHAN, YANG JIAFENG. 1982: STRAIN ADJUSTMENT IN THE EARTHQUAKE SOURCE REGION AND THE VARIATION OF RADON CONTENT IN WATER. Acta Seismologica Sinica, 4(2): 160-168.
Citation: TANG SHUNSHAN, YANG JIAFENG. 1982: STRAIN ADJUSTMENT IN THE EARTHQUAKE SOURCE REGION AND THE VARIATION OF RADON CONTENT IN WATER. Acta Seismologica Sinica, 4(2): 160-168.
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STRAIN ADJUSTMENT IN THE EARTHQUAKE SOURCE REGION AND THE VARIATION OF RADON CONTENT IN WATER

  • Seismological Bureau of Tianjin

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  • Published Date: August 31, 2011
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  • After the Tangshan Earthquake of 1976, strain adjustment took place in the earthquake source region by the occurrence of a series of aftershocks. The relative strain changes in the earthquake source region may be calculated from the energies of the aftershocks by the Benioff's formula. On the whole, these changes are consistent with those obtained from the vertical deformation observed at a geodetic levelling point within the earthquake region. The correlation between the variations of the radon content in water and the changes of relative strain is rather good. Further discussion based on such observations suggests that the increase in radon content in water after the main shock may be related to the strain adjustment in the earthquake source region and the cumulative increase of macroscopic fractures of the water bearing rock formations.
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    • References (1)
  • [1] H. Benioff, Crustal strain characteristics derived from earthquake sequences, Trarzs frmcr. Gcoph.Union.. 32. 4. 1951.

    [2] 陈运泰等,根据地面形变的观测研究19年邢台地震的震源过程,地球物理学报,18, 3, 1975,

    [3] 国家地震局地震测量队,1966年邢台地震的地形变,地球物理学报,18, 3, 1975,

    [4] 国家地震局地震测量队,1970年云南通海地震的地形变特征,地球物理学报,18, 4, 1975,

    [5] 国家地震局地震测量队,海城7.3级地震的地形变,地球物理学报,20, 4, 1977,

    [6] 北京市地震队水化学组,岩石破裂与氧含量变化关系的实验研究,地球物理学报,21, 4, 1977,

    [1] H. Benioff, Crustal strain characteristics derived from earthquake sequences, Trarzs frmcr. Gcoph.Union.. 32. 4. 1951.

    [2] 陈运泰等,根据地面形变的观测研究19年邢台地震的震源过程,地球物理学报,18, 3, 1975,

    [3] 国家地震局地震测量队,1966年邢台地震的地形变,地球物理学报,18, 3, 1975,

    [4] 国家地震局地震测量队,1970年云南通海地震的地形变特征,地球物理学报,18, 4, 1975,

    [5] 国家地震局地震测量队,海城7.3级地震的地形变,地球物理学报,20, 4, 1977,

    [6] 北京市地震队水化学组,岩石破裂与氧含量变化关系的实验研究,地球物理学报,21, 4, 1977,
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