ABSTRACT
ABSTRACT: The April 20, 2013, Mw 6.6 Lushan earthquake of Sichuan Province, China triggered a large number of landslides in a broad area. These landslides can be classified into two main categories of disrupted landslides and coherent landslides. The disrupted landslides include five types: rock falls, rock slides, rock avalanches, soil falls, and soil slides; and the coherent landslides have two types: soil slumps and slow earth flows. We prepared a detailed and comprehensive coseismic landslide inventory map based on visual interpretation of available post-earthquake high resolution aerial photographs and satellite images, as well as a series of pre-earthquake high resolution satellite images. This inventory map was verified by field investigation in selected areas. The result shows that the Lushan earthquake has triggered at least 22,528 coseismic landslides, which occupy a horizontally projected area of 18.88 km2 and an estimated total volume of 41.56 × 106 m3, and were overall distributed in a nearly ellipse area of about 5,400 km2.
