为什么山坡在经过多年的缓慢移动后,会在顷刻之间突然加速,造成致命的伤害?秘鲁南部的萨班卡亚火山爆发,摧毁了当地的大量植物——玛卡。从火山喷出的烟云时常会冲到下面的小镇,但让当地居民害怕的并不是这座火山,真正让他们害怕的是脚下的土地。玛卡地区周围的土地已经持续移动了30年。这块6 000万立方米的土地,相当于两万个游泳池,正悄悄带着部分的小镇移动至谷底。这种慢滑坡的影响是清晰可见的:最近几年,它 Why, after years of slow movement, the hill suddenly accelerates instantaneously, causing fatal injuries? The Sabanaya volcano erupted in southern Peru, destroying the large area of ​​Macha. Smoke from the volcano often rushed to the town below, but not for the local population is afraid of the volcano, the real fear is that they are underfoot land. The land around Macha has been moving for 30 years. This 60-million-cubic-meter land, equivalent to 20,000 swimming pools, is quietly moving some of the towns to the bottom of the valley. The effects of this slow landslide are clearly visible: in recent years, it has