IMHE OpenIR  > 山地灾害与地表过程重点实验室
Seismogenic fault and topography control on the spatial patterns of landslides triggered by the 2017 Jiuzhaigou earthquake
Wu, Chun-hao1,2; Cui, Peng1,3; Li, Yu-sheng4; Ayala, Irasema Alcantara5; Huang, Chao4; Yi, Shu-jian4
2018
Source PublicationJOURNAL OF MOUNTAIN SCIENCE
ISSN1672-6316
EISSN1993-0321
Volume15Issue:4Pages:793-807
SubtypeArticle
Abstract

Jiuzhaigou National Park, located in northwest plateau of Sichuan Province, is a UNESCO World Heritage Site, and one of the most popular scenic areas in China. On August 8, 2017, a Mw 6.5 earthquake occurred 5 km to the west of a major scenic area, causing 25 deaths and injuring 525, and the Park was seriously affected. The objective of this study was to explore the controls of seismogenic fault and topographic factors on the spatial patterns of these landslides. Immediately after the main shock, field survey, remote-sensing investigations, and statistical and spatial analysis were undertaken. At least 2212 earthquake-triggered landslides were identified, covering a total area of 11.8 km2. These were mainly shallow landslides and rock falls. Results demonstrated that landslides exhibited a close spatial correlation with seismogenic faults. More than 85% of the landslides occurred at 2200 to 3700 m elevations. The largest quantity of landslides was recorded in places with local topographic reliefs ranging from 200 to 500 m. Slopes in the range of similar to 20A degrees-50A degrees are the most susceptible to failure. Landslides occurred mostly on slopes facing east-northeast (ENE), east (E), east-southeast (ESE), and southeast (SE), which were nearly vertical to the orientation of the seismogenic fault slip. The back-slope direction and thin ridge amplification effects were documented. These results provide insights on the control of the spatial pattern of earthquake-triggered landslides modified by the synergetic effect of seismogenic faults and topography.

Keyword2017 Jiuzhaigou Earthquake Landslide Seismogenic Fault Topography Spatial Pattern
DOI10.1007/s11629-017-4761-9
Indexed BySCI
WOS Keywordm(s)7. 0 Earthquake ; Statistical-analysis ; Wenchuan Earthquake ; Haiti Earthquake ; Arias Intensity ; Complex Rupture ; Rock Falls ; China ; Amplification ; Greece
Language英语
Quartile4区
Funding ProjectKey Laboratory Program for Mountain Hazards and Earth Surface Process, CAS[KLMHESP-17-06] ; International Science Program-Silk Road Disaster Risk Reduction Grant[131551KYSB20160002] ; Major International (Regional) Joint Research Project[41520104002] ; Key Research Program of Frontier Sciences, CAS[QYZDY-SSW-DQC006] ; 135 Strategic Program of the Institute of Mountain Hazards and Environment, CAS[SDS-135-1701]
TOP
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000429949900010
Funding OrganizationKey Laboratory Program for Mountain Hazards and Earth Surface Process, CAS ; International Science Program-Silk Road Disaster Risk Reduction Grant ; Major International (Regional) Joint Research Project ; Key Research Program of Frontier Sciences, CAS ; 135 Strategic Program of the Institute of Mountain Hazards and Environment, CAS
PublisherSCIENCE PRESS
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/21447
Collection山地灾害与地表过程重点实验室
Corresponding AuthorCui, Peng
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Hazards, Chengdu 610041, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
4.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Sichuan, Peoples R China
5.Univ Nacl Autonoma Mexico, Inst Geog, Circuito Exterior S-N,Ciudad Univ, Mexico City 04510, DF, Mexico
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Wu, Chun-hao,Cui, Peng,Li, Yu-sheng,et al. Seismogenic fault and topography control on the spatial patterns of landslides triggered by the 2017 Jiuzhaigou earthquake[J]. JOURNAL OF MOUNTAIN SCIENCE,2018,15(4):793-807.
APA Wu, Chun-hao,Cui, Peng,Li, Yu-sheng,Ayala, Irasema Alcantara,Huang, Chao,&Yi, Shu-jian.(2018).Seismogenic fault and topography control on the spatial patterns of landslides triggered by the 2017 Jiuzhaigou earthquake.JOURNAL OF MOUNTAIN SCIENCE,15(4),793-807.
MLA Wu, Chun-hao,et al."Seismogenic fault and topography control on the spatial patterns of landslides triggered by the 2017 Jiuzhaigou earthquake".JOURNAL OF MOUNTAIN SCIENCE 15.4(2018):793-807.
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