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1980: DISTRIBUTION OF UNDERGROUND SEISMIC INTENSITY IN THE EPICENTRAL AREA OF THE 1976 TANGSHAN EARTHQUAKE. Acta Seismologica Sinica, 2(3): 314-320.
Citation: 1980: DISTRIBUTION OF UNDERGROUND SEISMIC INTENSITY IN THE EPICENTRAL AREA OF THE 1976 TANGSHAN EARTHQUAKE. Acta Seismologica Sinica, 2(3): 314-320.
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DISTRIBUTION OF UNDERGROUND SEISMIC INTENSITY IN THE EPICENTRAL AREA OF THE 1976 TANGSHAN EARTHQUAKE

  • Seismalogical Bureau of Shanxi Province

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  • Published Date: August 31, 2011
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  • Based on results of underground observations (in coal mines) in the epicentral area of the 1976 Tangshan Earthquake magnitude 7.8, it can be seen that beneath zones of higher seismic intensity of the area destructions attenuate rapidly with depths exponetially, becoming nearly constant at about 500 m below the surface. The distribution of seismic intensity in the horizental plane underground is controlled by the earthquake generating faults. Seismic intensity attenuates much more rapidly on both sides of a fault than on the surface vertically above.
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    • References (1)
  • [1] 谢毓寿, 新的中国地震烈度表, 地球物理学报, 6, 1, 1957.

    [2] 冈本舜三, 耐震工学, 才ーム社, 1971.

    [3] 地震工程概论编写组, 地震工程概论, 科学出版社, 1977.

    [4] 王景明, 河北某煤矿井田深部煤层中构造裂隙特征的研究, 地质力学论丛, 第3号, 科学出版社, 1976.

    [5] 时振梁等, 建筑物的破坏和断层附近的地面运动, 地球物理学报, 21, 3, 1978.
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