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Title:: Analysis on the Relationship between the Earthquake Concentration and the Historical Earthquake in 1875 Located in Guangxi or Guizhou

作者:: 王健¹; 和泰名¹; 周贝贝¹; 林国良^2; (1.中国地震局地球物理研究所,北京 100081; 2.云南省地震局,云南昆明 650224)

Author(s):: WANG Jian¹; HE Taiming¹; ZHOU Beibei¹; LIN Guoliang²; (1.Institute of Geophysics,China Earthquake Administration,Beijing 100081,China)(2.Yunnan Earthquake Agency,Kunming 650224,Yunnan,China)

Keywords:: historical earthquakes; intensity; seismicity; seismic hazard; Guangxi; Guizhou

摘要:: 1875年在广西与贵州之间发生了一次强烈地震,《中国历史强震目录(公元前23世纪—公元1911年)》和《中国历史地震图集》所给出的震中位置差异较大。针对相关史料进行梳理,通过计算研究区的中小地震密集区之后发现,广西乐业和贵州望谟分别存在地震密集区与上述两个震中对应。依据地震密集与历史强震的关系,分析了上述两种震中位置的合理性和可能结果,认为广西乐业和贵州望谟存在着两次6级左右的强震的可能性。

Abstract:: There was a strong earthquake occurring in 1875 and located in Guangxi Zhuang Autonomous Region or Guizhou Province,but the Chinese Strong Historical Earthquake Catalogue(2300 B.C.-1911 A.D.)and the Atlas of the Historical Earthquakes in China provided very different parameters about this earthquake. The disputations about the epicenter location of this earthquake have been continuing for many years.In this paper, we firstly examined the primary historical archives, and then calculated the seismic density in our research region,we found that there was an earthquake concentration zone in Leye County,Guangxi and another one in Wangmo County,Guizhou, which corresponded to the two epicenters.We analyzed the reasonability of the two epicenter locations and inferred the most likely scenario,according to the relationship between the strong earthquakes and the earthquake concentration zone.