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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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。
By measuring the slow rising and falling of the ground as the inexorable collision of the Nazca plate squeezed the coast, they could calculate how fast strain was actually building.
通过测量因纳斯卡板块挤压海岸发生碰撞造成的地面的缓慢上升与下降,他们能够估算压力的实际聚集速度。
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