1983: TEMPORAL AND SPATIAL CORRELATION OF MAJOR EARTHQUAKES OCCURRED IN YUNNAN AND SICHUAN PROVINCES SINCE 1920. Acta Seismologica Sinica, 5(4): 429-439.
Citation: 1983: TEMPORAL AND SPATIAL CORRELATION OF MAJOR EARTHQUAKES OCCURRED IN YUNNAN AND SICHUAN PROVINCES SINCE 1920. Acta Seismologica Sinica, 5(4): 429-439.

TEMPORAL AND SPATIAL CORRELATION OF MAJOR EARTHQUAKES OCCURRED IN YUNNAN AND SICHUAN PROVINCES SINCE 1920

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  • Published Date: August 31, 2011
  • In analysing the data of earthquakes of magnitude M 6 occurred in Yunnan and Sichuan provinces of southwestern China since 1920, it seems that a correlative relation exists in time and locality, with a probability of 78%. At the same time, the probability of the order of migration of earthquakes from Yunnan to Sichuan and from Sichuan to Yunnan is essentially equal, the intervals between origin times are about the same as well, the direction of migration of earthquakes is predominately northeast.Statistical results show that the interval (△) between events of Yunnan and Sichuan are generally short-about 9 months in average. X2 tests indicate that they obey the Poisson Distribution. The areas with higher correlative probability are given on the basis of discussions of their respective specific features. When an earthquake event occurs in an area, then the origin time, the location and the probability of the occurrence of an event in another area may roughly be estimated, thus providing a clue for medium-range earthquake prediction.Some problems concerning the mechanism of the correlative relation of earthquakes of Yunnan and Sichuan provinces have also been discussed in this paper,
  • [1] 许绍燮等,地震活动性图象,地震学报,4, 3, 241——246, 1982.

    [2] 吴佳冀等,华北地震同日本地震的相关性,地球物理学报,22,4, 415——438, 1979.

    [3] 阎志德等,我国华北地震与西南地区地震的相关性,地震研究,2, 3, 1979.

    [4] 罗平等,缅甸地震与我国云南西部地震的相关性,地震研究,4, 1, 1981.

    [5] 复旦大学数学系主编,概率论与数理统计,上海科技出版社,1979年.

    [6] 闲荣举等,我国西南地区的现代构造应力场和现代构造运动特征的探讨,地球物理学报,20, 2, 1977

    [1] 许绍燮等,地震活动性图象,地震学报,4, 3, 241——246, 1982.

    [2] 吴佳冀等,华北地震同日本地震的相关性,地球物理学报,22,4, 415——438, 1979.

    [3] 阎志德等,我国华北地震与西南地区地震的相关性,地震研究,2, 3, 1979.

    [4] 罗平等,缅甸地震与我国云南西部地震的相关性,地震研究,4, 1, 1981.

    [5] 复旦大学数学系主编,概率论与数理统计,上海科技出版社,1979年.

    [6] 闲荣举等,我国西南地区的现代构造应力场和现代构造运动特征的探讨,地球物理学报,20, 2, 1977
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