地 潜没 指地壳的板块沉到另一板块之下 中释
In the past 300 years, no earthquake nearly that large — nothing larger than magnitude-eight — had struck in the Japan subduction zone..在过去的300年里,在日本俯冲地区,从没发生过一个如此巨大的地震-没有一次比八级还大。
subduction zone,俯冲带;隐没带;消减带