Abstract
This report aims to survey the outline of debris flows occured in the last 24 years in Japan.
Elements which is examined are catchment area of stream which occured debris flow, flooding area of each debris flow, depth and volume of the deposit, etc.
The data is taken from my materials on hand from 1976 to 1981, and from Sabo handbook (Heisei 11 edition) from 1986 to 1999.
