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水库诱发地震就是因水库蓄水而激发的地震。米特湖蓄水后所诱发的地震活动,是常被引证的实例之一。 1936和1937年间,胡佛坝蓄水位上升,在鲍尔团市区及远离坝区的拉斯维格斯地区都能感觉到地震,引起了一些市民的惊慌和恐惧。这种地震虽使“橱柜之类东西格格作响”,但未造成明显损害。1964年以后,胡佛坝附近的有感地震已很少发生。 1967年,印度的柯依纳坝发生了破坏性地震,再次引起了人们对水库诱发地震的关注。美国科学院出版了有关水库诱发地震的资料汇编。美国地质调查局和陆军工程师团对该问题进行了研究。他们分析了全世界的所谓水库诱发地震的情况,并着重研究了那些被认为是因水库蓄水而引起的破坏性地震。本文根据许多最近成果的见解,重新研究了胡佛坝的地震问题。并利用美国陆军工程师团所提供的方法,分析因水库蓄水而引起地震的论据。
Reservoir-induced earthquakes are earthquakes that are triggered by reservoir water. Seismic activity induced by the Mitte Lake water storage is one of the most frequently cited examples. Between 1936 and 1937, the Hoover Dam water level rose and felt an earthquake in the downtown area of Ball and in Las Vegas, far from the dam, causing some people’s panic and fear. Although this kind of earthquake caused “something like a cabinet to make a difference,” it did not cause any obvious damage. After 1964, there are few earthquakes near Hoover Dam have occurred. In 1967, a destructive earthquake occurred at Kojina dam in India, again attracting people’s attention to the reservoir induced earthquake. American Academy of Sciences published a compendium of reservoir-induced earthquakes. The United States Geological Survey and the Army Corps of Engineers conducted a study of the issue. They analyzed so-called reservoir-induced earthquakes around the world and focused on those destructive earthquakes that are believed to be caused by the impounding of reservoirs. This article revisits the Hoover Dam earthquake problem based on many recent findings. And use the method provided by the US Army Corps of Engineers to analyze the arguments for the earthquake caused by the impoundment of reservoirs.