Distribution and Formation of Earthquake-Induced Secondary Geological Disasters in China
详细信息
- 责任者：Zhang Yecheng (Physical Geological Data Center ; Ministry of Land and Resources ; Beijing 101149 ; China) ; Zhang Lihai
- 刊名：Seismology and Geology
- 出版年：2012
- 卷期：34(4)
- 关键词：次生灾害 ; derived disasters ; 震灾 ; seismic hazard ; 中国 ; China
- 页码：p.805-809
- 图表：1 table, 4 refs.
- 分类号：1800
- issnNo：ISSN0253-4967
- isbnNo：CN11-2192/P
摘要
The earthquake secondary geological disasters refer to the geological disasters induced by earthquake,including mainly landslide,collapse and also ground caving in and soil liquefaction,etc.The geologic and geomorphic conditions for generating earthquake secondary disasters are basically the same with that of general geological disasters,but the trigger factor for the former is earthquake. Secondary geological disasters are likely to happen in areas of M≥5.0 and seismic intensity ≥Ⅵ,and the higher the earthquake magnitude and intensity,the more serious the secondary geological disasters. The damage caused by earthquake secondary geological disasters is similar compared with other geological disasters,but the chance of occurrence of the former is smaller.