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自六十年代以来,世界上发生过4次6级以上破坏性水库地震,从而引起了国内外学者的重视。本文统计了世界大库容和高坝水库的资料,分析了可能诱发较大地震的一面,同时也分析了水库对防止地震灾害尚存在有益的一面。文中从22个水库诱发了4.0～6.4级地震震例中,归纳了水库诱发地震的10个基本特征。在探讨水库地震成因的问题中,提出了水库地震形成的6个基本条件是内因、是前提,而触发水库地震的因素是外因;并提出液压水的热膨胀——扩容聚集触发效应,是水库地震诱发成因之一。
Since the 1960s, four devastating reservoir earthquakes of magnitude 6 or above have occurred in the world, which has attracted the attention of scholars at home and abroad. In this paper, the statistics of the world’s large reservoir and the dam reservoir, the possible side of the earthquake may be induced, but also analyzes the reservoirs to prevent earthquakes there is still a useful side. In this paper, from the 22 reservoirs induced 4.0 ~ 6.4 earthquakes cases, summarized 10 reservoir-induced earthquake characteristics. In the discussion of the causes of reservoir earthquakes, it is put forward that the six basic conditions for the formation of reservoir earthquakes are internal factors, which are the prerequisites, and the factors that trigger reservoir earthquakes are the external factors; and the thermal expansion of hydraulic water-the triggering effect of expansion and accumulation is proposed. Cause one of the causes.