“The Reality of Sediment-related Disasters”

Japanese version :土砂災害の実態

STC makes “The Reality of Sediment-related Disasters” available online
      SABO & Landslide Technical Center (STC) has been publishing “The Reality of Sediment-related Disasters” since 1982 as one of our public services. STC makes “The Reality of Sediment-related Disasters” available online. The latest published edition will be available online next year.
      “The Reality of Sediment-related Disasters” will provide various information on the sediment-related disasters in the previous year in Japan, such as the number of occurrences; related information of major disasters (location, weather condition, geology, sediment movement phenomena, sediment volume, damage, recovery, and photos). STC believes it will be useful in raising awareness of disaster prevention/mitigation among residents and officers of municipalities and prefectural governments; in academic research.

    Examples of references in academic research
  Shinohara, Y., and Komatsu, H. (2016): The recent trend in annual death toll by landslide disasters in Japan, Journal of the Japan Society of Erosion Control Engineering. Vol. 68, No.5, p.3-9
https://doi.org/10.11475/sabo.68.5_3
  Shinohara, Y. and Kume, T. (2022): Changes in the factors contributing to the reduction of landslide fatalities between 1945 and 2019 in Japan, Science of the Total Environment, 827, 154392
https://doi.org/10.1016/j.scitotenv.2022.154392

Back number of “The Reality of Sediment-related Disasters”(in Japanese)

2020 2010 2000 1990
2019 2009 1999 1989
2018 2008 1998 1988
2017 2007 1997 1987
2016 2006 1996 1986
2015 2005 1995 1985
2014 2004 1994 1984
2013 2003 1993 1983
2012 2002 1992 1982
2011 2001 1991

The number of dead and missing due to sediment-related disasters and other natural disasters in Japan from 1972 to 2021, cited from “The Reality of Sediment-related Disasters 2022”


Number of dead and missing caused by natural disaster in Japan (1972-2021)
(Cited from SABO and Landslide Technical Center (2022): The Reality of Sediment-related Disasters 2022, 77pp.)

1. Natural disaster (except sediment-related disaster) was cited from Cabinet office “White paper disaster management in Japan 2021” and others were surveyed by SABO Department, Ministry of Land, Infrastructure, Transport and Tourism.
2. Natural disaster (except sediment-related disaster) includes storm, heavy rain, flood, storm surge, earthquake, tsunami, volcanic eruption, and heavy snow.
3. Number of dead and missing caused by snow avalanche is counted only in “Snow avalanche risk area” where houses are located. Mountain climbers were excluded.
4. Number of dead and missing of debris flow and other sediment discharge phenomena, deep-seated landslide: 54 in 1991 and 31 in 1993, including 43 dead and 1missing caused by pyroclastic flows in Unzen-Fugendake.
5. Natural disaster (except sediment-related disaster) includes disaster-related death.
6. Number of dead and missing caused by natural disaster (except sediment-related disaster) in 2021 was not published yet.
7. 2 dead caused by heavy rainfall in northern Kyushu in 2017 is included number of dead and missing of debris flow and other sediment discharge phenomena. Because sediment movement phenomena caused 2 dead was unknown.
PDF version is here

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