A number of power plants have been affected along Japan's North-East coast following Friday's 8.9 magnitude earthquake sparking fears of a nuclear explosion.
9级大地震使日本东北沿岸一系列发电站受到牵连,引发对核爆炸的担忧。
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The occurrence condition and mechanism of gas explosion are discussed and the possible magnitudeof induced earthquake is estimated in this paper.