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由于地球不断运动,逐渐积累了巨大能量,在地壳某些脆弱地带造成岩层突然发生破裂或错动,这就是地震。关于地震,你知道下面这些知识吗?
Due to the constant movement of the Earth, huge energy has gradually accumulated and the rock burst or ruptured suddenly in some vulnerable parts of the crust. This is an earthquake. Do you know the following about earthquakes?