The Classification and Features of Earthquake-Induced Landslides in the World

Abstract

In the subcommittee of the overseas earthquake-induced landslides of the Japanese Landslide Society, the investigation of landslides triggered by earthquakes in the world was performed through mining the case studies from published literatures and documents. The sampled landslides triggered by big earthquakes (say, M > 6.0) since 1900 exceeds 70, and most of them are located in China, Japan, Iran, Indonesia, India, Pakistan, the United States, Chile, Peru, Italy, and Turkey etc. The type of these coseismic landslides extends to a wide range. These landslides were normally catastrophic, not only due to their direct damage, but also due to their resultant effects (such as tsunami, landslide dam, debris flow during post-quake heavy rainfall, and so on). In order to brief understanding on these coseismic landslides, we extracted several cases among the sampled landslides in the world and analyzed the landslides with extensive damage. We outlined the features of differing types of landslides based on their geomorphologic and geological characteristics, and also on the magnitude of the earthquake.