1733年云南东川发生里氏7.8级地震，震害被崔乃镛几乎完整地记录了下来，对山地区走滑发震断裂触发的震害研究具有很高的研究价值。本文基于史料及现场调研，对次生山地灾害进行了复核，并获得如下基本认识：(1)地震次生山地灾害尤其是滑坡沿发震断裂呈窄条带状分布; (2)弱支护采铜矿洞坍塌严重; (3)滑坡失稳既有抛射现象也有慢速滑动现象，取决滑坡边界条件或失稳时间;(4)斜坡岩土体地震过程中震裂、松动是该区泥石流高频的主要原因之一。

Dongchuan Ms 7.8 earthquake happened on August 2nd, 1733, and the seismic hazards were completely recorded by Cui Naiyong, a local executive officer, in which the data are valuable to the study of secondary mountainous seismic hazards triggered by strike-slip seismic fault. The present paper investigated the secondary seismic hazards in the field based on the guide of the historical materials，the main conclusions were as follows: (1) the secondary mountainous seismic hazards were limited in a narrow zone along the seismic fracture; (2) weak support underground mines of copper were destroyed or seriously damaged, and the wooden building was good in seismic resistance; (3) the landslide failure showed in two different styles: projecting or slowly sliding, depending on the boundary conditions of the landslides or the failure time;(4) slope seismic shattering and loosening was one of the main reasons for the high-frequency debris flow.

国家自然科学基金（41072231）；中国地调局项目（1212011220154）；地质灾害防治与地质环境保护国家重点实验室自主课题基金资助（SKLGP2015Z001）