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水口山鸭公塘矿区1966～1968年共发生有感微震590次。这群地震具有震源极浅(绝大多数地震,h≤300米)、震级极低(M_L≤0.2级)、时空强分布与矿山疏干排水关系极为密切等特点。它们是矿区地下原处于动态平衡的块体,在抽水的影响下突然运动的结果,属抽水诱发地震。发生这类地震的矿区必须具备老构造面发育、被分割的块体有较多的应变能;抽水时能形成较大的降落漏斗和有允许块体运动的空间等。根据上面提出的三个条件,可以对类似金属矿山疏干排水是否能诱发地震及未来地震危险性进行估计。
Shuikoushan duck public Tong mining area 1966 ~ 1968 occurred a total of 590 times a slight earthquake. These earthquakes have very shallow hypocenter (most earthquakes, h≤300m), very low magnitude (M_L≤0.2), strong correlation between spatio-temporal intensity distribution and mine drainage and drainage. They are the result of the sudden movement of the mine under the influence of pumping water, which is a dynamic equilibrium block underground. It is a pump-induced earthquake. The mining area in which such earthquakes occur must possess the characteristics of an older tectonic surface and more segmented blocks with greater strain energy. When pumping water, larger descending funnels and spaces that allow block movement can be formed. Based on the three conditions presented above, it can be estimated whether the drainage and drainage of similar metal mines can induce earthquakes and future earthquakes.