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- Title
2023年12月18日甘肃积石山Ms6. 2 地震触发次生灾害快速评估.
- Authors
徐岳仁; 窦爱霞; 李智敏; 梁朋; 梁泽毓; 陆玲玉
- Abstract
On December 18, 2023, an Ms6. 2 earthquake occurred in Jishishan County, Gansu Province. The earthquake triggered a mudflow disaster in Jintian Village, Zhong-chuan Township, Guanting Basin, causing serious damage and casual ties. Comparative analysis of pre- and post-earthquake high-resolution satellite/aerial images shows that the Jishishan Ms6. 2 earthquake did not trigger large-scale coseismic landslides and dense soil liquefaction, but dense large-size loess landslides and soil liquefaction pits developed before the earthquake maybe triggered by paleoearthquake event (s). The mudflow disaster in Jintian village was caused by the flow of clay soil with high wa/ter content in the source area under vibration conditions, which was possibly related to the human cultivation (winter irrigation from the Yellow River).
- Publication
Earthquake (1000-3274), 2024, Vol 44, Issue 1, p209
- ISSN
1000-3274
- Publication type
Article
- DOI
10.12196/j.issn.1000-3274.2024.01.019