IGGCAS OpenIR  > 页岩气与地质工程院重点实验室

Factors controlling the spatial distribution of coseismic landslides triggered by the Mw 6.1 Ludian earthquake in China

Zou, Yu1,2,3; Qi, Shengwen1,2,3; Guo, Songfeng1,2,3; Zheng, Bowen1,2,3; Zhan, Zhifa4; He, Naiwu5; Huang, Xiaolin1,2,3; Hou, Xiaokun1,2,3; Liu, Haiyang1,2,3
2022
Source PublicationENGINEERING GEOLOGY
ISSN0013-7952
Volume296Pages:22
AbstractUnderstanding the spatial distribution regularity of coseismic landslides is important for mitigation in future earthquakes. Unveiling the controlling factors of the distribution of coseismic landslides is a long-standing unsolved problem. On 3 August 2014, a Mw 6.1 earthquake occurred in Ludian County, Yunnan Province, China, and resulted in a great number of landslides and substantial losses. The coseismic landslide distribution in this earthquake, which was triggered by an unmapped fault, shows a different pattern. This paper conducted a spatial analysis to reveal the controlling factors in the Ludian earthquake. A spatial database of landslides has been built by interpreting the ZY-3 pre-earthquake, unmanned aerial vehicle (UAV), GeoEye-1 and GF-1 post-earthquake. A total of 1414 landslides were identified after a combination of image interpretation and field investigation in an area of 704.7 km(2). The geological setting of the study area, including the tectonics and lithology, has been mapped in detail. The digital elevation model (DEM) of the study area with a resolution of 30 m x 30 m was presented to address the topographic characteristics. A geographic information system (GIS) was used to analyse the spatial characterization of the landslides. Correlations between the occurrences of landslides and factors, i.e., slope gradient, elevation, slope aspect, intensity, distance to coseismic fault, distance to the epicentre, lithology, distance to non-coseismic faults, distance to rivers and distance to road, were characterized with a spatial analysis in GIS. It can be concluded that the slope gradient and the distance to the coseismic fault are the two most important factors for determining the spatial distribution of coseismic disasters. Some other factors play a role by influencing the slope gradient to a certain extent, and the movement of the coseismic fault is the prone direction of coseismic landslides. Slope cutting fractures the rock mass, increases the slope gradient, and significantly increases the occurrence of coseismic landslides. A statistics analysis indicates that the landslide concentration (LC) generally has an obvious exponential decrease with an increasing distance to the coseismic fault, while it has a good Weibull cumulative distribution with the slope gradient.
KeywordLudian earthquake Spatial analysis Landslide concentration Coseismic landslides Engineering disturbance
DOI10.1016/j.enggeo.2021.106477
Funding OrganizationSecond Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences
WOS Keyword2008 WENCHUAN EARTHQUAKE ; 2013 LUSHAN EARTHQUAKE ; DISTRIBUTION PATTERN ; LOMA-PRIETA ; HAZARD ; YUNNAN ; FAULT ; SUSCEPTIBILITY ; TOPOGRAPHY ; PROVINCE
Language英语
Funding ProjectSecond Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0904] ; National Natural Science Foundation of China[41825018] ; National Natural Science Foundation of China[42090051] ; National Natural Science Foundation of China[41941018] ; National Natural Science Foundation of China[42077266] ; National Natural Science Foundation of China[41672307] ; National Natural Science Foundation of China[41790442] ; Key Deployment Program of the Chinese Academy of Sciences[KFZD-SW-422]
Funding OrganizationSecond Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences
WOS Research AreaEngineering ; Geology
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000787902300001
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/105176
Collection页岩气与地质工程院重点实验室
Corresponding AuthorQi, Shengwen
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn KLSGG, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
4.China Renewable Energy Engn Inst, Beijing 100120, Peoples R China
5.China Highway Engn Consulting Corp, Beijing 100089, Peoples R China
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zou, Yu,Qi, Shengwen,Guo, Songfeng,et al.

Factors controlling the spatial distribution of coseismic landslides triggered by the Mw 6.1 Ludian earthquake in China

[J]. ENGINEERING GEOLOGY,2022,296:22.
APA Zou, Yu.,Qi, Shengwen.,Guo, Songfeng.,Zheng, Bowen.,Zhan, Zhifa.,...&Liu, Haiyang.(2022).

Factors controlling the spatial distribution of coseismic landslides triggered by the Mw 6.1 Ludian earthquake in China

.ENGINEERING GEOLOGY,296,22.
MLA Zou, Yu,et al."

Factors controlling the spatial distribution of coseismic landslides triggered by the Mw 6.1 Ludian earthquake in China

".ENGINEERING GEOLOGY 296(2022):22.
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