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Two public inventories of landslides induced by the 10 June 2022 Maerkang Earthquake swarm, China and ancient landslides in the affected area

Authors :
Xiaoyi Shao
Chong Xu
Peng Wang
Lei Li
Xiangli He
Zhaoning Chen
Yuandong Huang
Xiwei Xu
Source :
Natural Hazards Research, Vol 2, Iss 4, Pp 269-272 (2022)
Publication Year :
2022
Publisher :
KeAi Communications Co. Ltd., 2022.

Abstract

The June 10, 2022 Ms5.8, Ms6.0 and Ms5.2 earthquake swarm of Maerkang, Sichuan, China has triggered a lot of landslides. The primary purpose of this paper is to prepare a detailed coseismic landslides inventory and ancient landslide inventory in the earthquake swarm-affected area. Based on pre- and post-quake high-resolution optical satellite images (planet), we delineated 650 individual coseismic landslides in the VI-intensity area and above, occupying an area of about 1.2 ​km2. The largest landslide covers about 70217 ​m2 in horizontal projection, while the smallest one is just 81 ​m2. In addition, based on the series of high-precise images on the Google Earth Platform, 759 ancient landslides were also delineated with an area of 117 ​km2. The maximum area reaches about 2 ​km2 and the minimum is 2580 ​m2. The two inventories provide a basis for landslide spatial distribution and hazard assessment, disaster prevention and mitigation of earthquake-triggered landslides in similar regions. We opened these two landslide inventories to facilitate researchers to carry out more in-depth work.

Details

Language :
English
ISSN :
26665921
Volume :
2
Issue :
4
Database :
Directory of Open Access Journals
Journal :
Natural Hazards Research
Publication Type :
Academic Journal
Accession number :
edsdoj.951624605294a29a2e4020d8c6cb2ff
Document Type :
article
Full Text :
https://doi.org/10.1016/j.nhres.2022.09.001