Annual Report on Sediment-related Disasters in Japan

Introduction in Japanese

Annual Report on Sediment-related Disasters in Japan is now available online!

Annual Report on Sediment-related Disasters in Japan has been a major publication of SABO & Landslide Technical Center (STC) since 1982. It is now at your disposable freely through the STC webpage. It is hoped to be renewed each year under the auspices of the Ministry of Land, Infrastructure, Transport, and Tourism (MLIT), who has regulatory oversight on the national collection of original data.

The report is the result of compiling and edifying efforts on sediment-related incidents and disasters with casualties of the preceding year, reported to the MLIT with items such as: location, weather condition, geology, sediment movement phenomena, sediment volume, damage, recovery, and photos. The expected readers of the report is chiefly local residents in hazard prone areas and related persons in local municipalities, not excluding academic researchers with interest in sediment-related disaster prevention.

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

J-STAGE

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

ScienceDirect

Back number of “Annual Report on Sediment-related Disasters in Japan”(in Japanese)

The number of dead and missing due to sediment-related disasters and other natural disasters in Japan from 1974 to 2023, cited from “Annual Report on Sediment-related Disasters 2023 in Japan”

View in PDF (PDF)

Number of dead and missing caused by natural disaster in Japan (1974-2023)
(Cited from SABO and Landslide Technical Center (2023): Annual Report on Sediment-related Disasters 2023 in Japan, 55pp)

  1. For the number of deaths and missing persons each year, figures for all natural disasters are based on the White Paper on Disaster Management (FY2023edition) published by the Cabinet Office. Figures for debris flows, landslides, slope failures, and avalanches are based on surveys by the Sabo Department, Water and Disaster Management Bureau, Ministry of Land, Infrastructure, Transport and Tourism, as of the end of FY2023.
  2. The number of deaths and missing persons due to all natural disasters refers to damage caused by typhoons, tornadoes, heavy rain, floods, slope failures, debris flows, storm surges, earthquakes, tsunamis, volcanic eruptions, landslides, and other abnormal natural phenomena.
  3. The number of deaths and missing persons due to avalanches is based on data compiled from avalanche hazard areas where protected houses and similar structures are located. It does not include cases from other locations, such as avalanches occurring to mountaineers while climbing.
  4. Among the number of deaths and missing persons caused by debris flows in 1991 and 1993, 55 and 33 respectively, the figures include 43 deaths and 1 missing person due to the pyroclastic flows of Mt. Unzen (Fugen-dake).
  5. The number of deaths and missing persons due to all natural disasters in FY2023 is not included, as the final figures have not yet been compiled.
  6. Of the 22 deaths and missing persons caused by the Northern Kyushu Heavy Rain in 2017, 2 individuals are included under debris flows and similar phenomena, as the specific type of sediment movement that caused their deaths is unknown.

Annual Report on Sediment-related Disasters in Japan

Annual Report on Sediment-related Disasters in Japan