Development of landslide susceptibility mapping model for earthquake-induced landslides based on buffer movement analysis and blunder probability analysis

Abstract

  Geological and geomorphological factor analysis of landslides induced by the Mid Niigata Prefecture earthquake in 2004 and development of landslide susceptibility mapping model were carried out by using of buffer movement analysis and blunder probability analysis (Hamasaki et al., 2015). Each index value as a geological and geomorphological factor of earthquake-induced landslides was collected by buffer movement analysis from original GIS data. In addition, best combination and weight value among each index was evaluated based on blunder probability analysis. As a result, distribution of calculated susceptibility score was well accordance with distribution of actual landslide occurrence sites.