An anthropogenic landslide dammed the Songmai River, a tributary of the Jinsha River in Southwestern China

Chong Xu (), Yulong Cui, Xiwei Xu, Pengpeng Bao, Gui Fu and Wenliang Jiang
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Chong Xu: China Earthquake Administration
Yulong Cui: Anhui University of Science and Technology
Xiwei Xu: China Earthquake Administration
Pengpeng Bao: Anhui University of Science and Technology
Gui Fu: Anhui University of Science and Technology
Wenliang Jiang: China Earthquake Administration

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2019, vol. 99, issue 1, No 29, 599-608

Abstract: Abstract On March 20, 2019, a landslide (named Yagu landslide) occurred in eastern Tibetan Plateau. It produced a 10-m-high dam, resulting in a lake on the Songmai River, a tributary of the Jinsha River. This paper describes this slope failure and analyzes the process and cause of the landsliding based on the combination of Google Earth images, PlanetScope satellite optical images, field photography and geologic data. It is speculated that this event was likely induced by local human activity, such as quarrying rather than natural factors. This example raises a challenging issue whether the ongoing projects along the Jinsha River can induce landslides. In addition, the emergency responses of the government and the effort for risk removal of the dammed lake are presented.

Keywords: Yagu landslide; Dammed lake; Tibetan Plateau; Mechanism; Evolution; Emergency response; Jinsha River (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1007/s11069-019-03740-y

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