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2012年“9·07”彝良地震诱发大量的次生山地灾害,包括崩塌、滚石、滑坡、泥石流等。其中,崩塌、滚石不仅造成了大量人员伤亡和房屋损毁,也阻塞了救援道路,严重延缓了救援进度。且由于地震及余震多次往复作用,造成大部分山体稳定性降低,在未来几年甚至几十年,山地灾害将进入频发期,灾害链[滚石、崩塌、滑坡-泥石流-堵江(堰塞湖)-溃坝(洪水、更大规模泥石流)]表现将尤为突出。通过地震后对彝良县城洛泽河镇地震重灾区展开次生山地灾害调查,提出震区次生山地灾害的减灾建议。
In 2012, the “9.17” Yeliang earthquake triggered a large number of secondary mountainous disasters, including collapsing, rolling stones, landslides and mudslides. Among them, the collapse, rolling stones not only caused a large number of casualties and housing damage, but also blocked the rescue road, seriously delayed the progress of the rescue. Due to the earthquake and aftershock repeated reciprocating action, the stability of most of the mountains is reduced. In the coming years and even decades, the mountainous disasters will enter the frequent occurrence period. The disaster chains [rolling stone, landslide-debris flow-blocking the river Sai Lake) - dam break (floods, larger debris flow)] performance will be particularly prominent. After the earthquake, a secondary mountainous area disaster investigation was carried out in the earthquake-hit area of Luozehe Town in Yiliang County, and proposed the disaster reduction suggestions of the secondary mountainous disaster in the earthquake area.