Seismogenic fault and topography control on the spatial patterns of landslides triggered by the 2017 Jiuzhaigou earthquake
文献类型：期刊论文
| 作者 | Wu, Chun-hao; Cui, Peng; Li, Yu-sheng; Ayala, Irasema Alcantara; Huang, Chao; Yi, Shu-jian |
| 刊名 | JOURNAL OF MOUNTAIN SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 15期号:4页码:793-807 |
| 关键词 | 2017 Jiuzhaigou earthquake Landslide Seismogenic fault Topography Spatial pattern |
| ISSN号 | 1672-6316 |
| DOI | 10.1007/s11629-017-4761-9 |
| 文献子类 | Article |
| 英文摘要 | 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. |
| 电子版国际标准刊号 | 1993-0321 |
| 语种 | 英语 |
| WOS记录号 | WOS:000429949900010 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/35422]  |
| 专题 | Journal of Mountain Science_Journal of Mountain Science-2018_Vol15 No.4 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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