1. Cabinet Office of Japan, 2019. About the damage situation by the Heavy Rain Event of July 2018 (32nd report) (in Japanese). http://www.bousai.go.jp/updates/h30typhoon7/pdf/310109_1700_h30typhoon7_01.pdf.
2. Landslide types and processes;Cruden;Special Report, Transportation Research Board, National Academy of Sciences.,1996
3. Ehime Prefectural Government, 2019. Report of review committee on measures against sediment disaster countermeasures for strengthening a heavy rain warning and evacuation system responding to the Heavy Rain Event of July 2018 (in Japanese).
4. Ehime Prefectural Government Disaster Countermeasure Headquarters, 2019. About the situation of damage due to Heavy Rain Event of July 2018 (100th report) (in Japanese).
5. Geospatial Information Authority of Japan, 2018. Distribution map of collapsed areas due to the Heavy Rain Event of July 2018 (Ozu and Uwajima region) (in Japanese).