从地质上来说,这些岛屿位于地球上最活跃的火山地区之一:纳斯卡板块(Nazca Plate);从地理上来说,虽然这些岛屿位于热带地区,但是它们却不处在大风暴或极端气候的活动路线上。
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This huge jolt happened as the Nazca plate moved down and landward below the South American plate.
这次巨大的摇晃发生在纳斯卡板块下移,向南美板块下的近陆移动。
The two plates are converging at a rate of 80 mm per r, with the Nazca plate moving down and landward below the South American plate.
两个板块每年以80毫米的速度靠拢,纳斯卡板块沿着朝向陆地并偏下的方向在南美板块下方移动。
Just off its coast is the Nazca plate, which rests below the south-eastern Pacific Ocean and slides beneath the South American tectonic plate by some 9 centimetres a year.
智利的海岸线外是纳斯卡板块,它位于太平洋的东南方下面,以每年9厘米的距离向南美板块下俯冲。
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