Database and spatial distribution of landslides triggered by the Lushan, China Mw 6.6 earthquake of 20 April 2013
Citation
Xu, C., Xu, X., Shyu, J. B. H. (2015). Database and spatial distribution of landslides triggered by the Lushan, China Mw 6.6 earthquake of 20 April 2013. Geomorphology, 248: 77-92. Link to paper
Abstract
On 20 April 2013, an earthquake with Mw 6.6 (Ms 7.0) hit Lushan County, Sichuan Province of China, only 85 km southwest of the 2008 Wenchuan Mw 7.9 event. The Lushan shock triggered a large number of landslides with various types, including highly disrupted shallow slides and rock falls, deep-seated landslides and large-scale rock avalanches. Post-earthquake high resolution aerial photographs and satellite images, as well as a series of pre-earthquake high resolution satellite images were collected to construct a detailed, accurate, objective, and complete coseismic landslide database/inventory, which was validated by field investigation in selected areas. The 22,528 coseismic landslides, with a horizontal projection area of 18.88 km2 and an estimated total volume of 41.56 x 10^6 m3, were distributed in a nearly elliptic area of about 5,400 km2. Correlations between coseismic landslide abundances and topographic, geologic, and seismic factors were analyzed on 15,546 landslides of area >= 100 m2.