Climatological and geological controls on seismic earthflows in coastal areas
文献类型:期刊论文
作者 | Zhao, Bo |
刊名 | CATENA |
出版日期 | 2024-02-01 |
卷号 | 235页码:20 |
ISSN号 | 0341-8162 |
关键词 | Seismic earthflow Coastal area Spatial distribution Controls Mobility |
DOI | 10.1016/j.catena.2023.107692 |
英文摘要 | Seismic earthflows, as special seismic landslides, have occurred in several recent coastal earthquakes, causing catastrophic consequences, but few studies have focused on these landslides. Thus, this study adopts cases induced by recent earthquakes, e.g., the 2018 Palu, 2018 Eastern Iburi, 2018 Lombok and 2022 Pasaman earthquakes, to analyze the characteristics of occurrence and movement. The results show that the Palu, Eastern Iburi, Lombok and Pasaman events induced 8, 7006, 1155 and 33 typical earthflows, respectively, which are in two material layers: volcanic deposits (Eastern Iburi, Lombok and Pasaman events) and alluvial deposits (Palu event). Earthflows in volcanic deposits are very sensitive to rainfall; all earthflows occur in high-rainfall areas, and they are shallow landslides. The corresponding average mobility values (H/L) range from approximately 0.20 similar to 0.35. The earthflows induced by the Palu event exhibit extremely high mobility levels (average H/L = 0.021). Different liquefied layers could explain the liquefaction mechanism of earthflows in the two material layers. Additionally, compared to other seismic landslides, earthflows occur on gentler hills and have higher mobility. |
WOS关键词 | EARTHQUAKE-INDUCED LANDSLIDES ; 2018 SULAWESI EARTHQUAKE ; DISTANCE FLOW-SLIDE ; SPATIAL-DISTRIBUTION ; CHINA ; PALU ; RUPTURE ; LOMBOK ; LIQUEFACTION ; TOPOGRAPHY |
资助项目 | National Natural Science Foundation of China[U22A20603] ; National Natural Science Foundation of China[42007273] ; Science and Technology Research Program of the Institute of Mountain Hazards and Environment, Chinese Academy of Sciences[IMHE-ZYTS-03] ; Science and Technology Research Program of the Institute of Mountain Hazards and Environment, Chinese Academy of Sciences[IMHE-ZDRW-03] ; Science and Technology Development Fund ; State Key Laboratory of Internet of Things for Smart City (University of Macau) ; [SKL-IOTSC (UM) -2021-2023] ; [SKL-IoTSC (UM) -2024-2026/ORP/GA09/2023] |
WOS研究方向 | Geology ; Agriculture ; Water Resources |
语种 | 英语 |
出版者 | ELSEVIER |
WOS记录号 | WOS:001123778400001 |
资助机构 | National Natural Science Foundation of China ; Science and Technology Research Program of the Institute of Mountain Hazards and Environment, Chinese Academy of Sciences ; Science and Technology Development Fund ; State Key Laboratory of Internet of Things for Smart City (University of Macau) |
源URL | [http://ir.imde.ac.cn/handle/131551/57790] |
专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
通讯作者 | Zhao, Bo |
作者单位 | Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Hazards & Earth Surface Proc, Chengdu 610041, Peoples R China |
推荐引用方式 GB/T 7714 | Zhao, Bo. Climatological and geological controls on seismic earthflows in coastal areas[J]. CATENA,2024,235:20. |
APA | Zhao, Bo.(2024).Climatological and geological controls on seismic earthflows in coastal areas.CATENA,235,20. |
MLA | Zhao, Bo."Climatological and geological controls on seismic earthflows in coastal areas".CATENA 235(2024):20. |
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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