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8月3日16时30分许,云南省昭通市鲁甸县境内发生6.5级地震,震源深度12公里。地震为什么难以预测?地震是地壳释放能量产生破裂造成的震动。目前普遍的观点是,地球板块运动相互挤压碰撞,板块边缘及板块内部产生错动和破裂导致了地震。也有人认为,地球深部地幔热对流是产生地震的原因。由于地震大多发生在地壳的内部,人类现在还无法探测和观测地球深部的环境和地震发生的
At 16:30 on August 3, a magnitude 6.5 earthquake occurred in Ludian County, Zhaotong City, Yunnan Province, with a focal depth of 12 km. Why is the earthquake unpredictable? Earthquakes are the shocks caused by the rupture of energy released by the crust. At present, it is generally accepted that earthquakes are caused by the crushing and bursting of the Earth’s plate tectonics due to the mutual crushing and collision of the Earth’s plate tectonics and the dislocation and rupture of the tectonic plates and the interior of the tectonic plates. Some people think that the Earth’s deep mantle convection is the cause of the earthquake. Since most of the earthquakes happen inside the earth’s crust, human beings are still unable to detect and observe the deep earth’s environment and earthquakes