Rainfall Thresholds for the Initiation of Landslides

Sunday 05 May 2024

Rainfall thresholds in Japan, sorted by Zone

Nation	Zone	Threshold type	Landslide code	Equation	Range	Notes	Reference	Image
Japan	Chiba and Kanagawa prefectures	I_MAXE	Sh	I_max = 150 × E^-0.38	0 < E < 200	Lower threshold	Onodera T, Yoshinaka R, Kazama H (1974) Slope failures caused by heavy rainfall in Japan. In: Proceedings of the 2nd International Congress of the International Association of Engineering Geology. Sao Paulo, Brazil, 11: 1-10	Graphic
Japan	Chiba and Kanagawa prefectures	I_MAXE	Sh	I_max = 290 × E^-0.38	0 < E < 300	Intermediate threshold	Onodera T, Yoshinaka R, Kazama H (1974) Slope failures caused by heavy rainfall in Japan. In: Proceedings of the 2nd International Congress of the International Association of Engineering Geology. Sao Paulo, Brazil, 11: 1-10	Graphic
Japan	Chiba and Kanagawa prefectures	I_MAXE	Sh	I_max = 390 × E^-0.38	0 < E < 400	Upper threshold (major disaster)	Onodera T, Yoshinaka R, Kazama H (1974) Slope failures caused by heavy rainfall in Japan. In: Proceedings of the 2nd International Congress of the International Association of Engineering Geology. Sao Paulo, Brazil, 11: 1-10	Graphic
Japan	Hokkaido Island	R	A	R > 200 mm	n.a.	n.a.	Endo T (1970) Probable distribution of the amount of rainfall causing landslides. Annual report, Hokkaido Branch, Govern. Forest Experiment Station, Sapporo, 123-136	Graphic
Japan	n.a.	ID	D	I = 39.71 ×D^-0.62	0.5 < D < 12	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
Japan	n.a.	IE	D	I = 112.25 - 0.20×E	165 < E < 440	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
Japan	n.a.	IE	D	I = 67.38 × E^-0.0023×E	50 < E < 400	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
Japan	n.a.	I_MAPD	D	I_MAP = 0.03×D^-0.63	1 < D < 12	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
Japan	n.a.	I_MAPE_MAP	D	I_MAP= 0.04 - 0.19 × E_MAP	0 < E_MAP < 0.22	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
Japan	n.a.	I_MAPE_MAP	D	I_MAP= 0.04 × e^-3.55×E_MAP	0.03 < E_MAP < 0.25	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
Japan	Shikoku Island	ID	A	I = 1.35+55×D^-1.00	24 < D < 300	n.a.	Hong Y, Hiura H, Shino K, Sassa K, Suemine A, Fukuoka H Wang G (2005) The influence of intense rainfall on the activity of large-scale crystalline schist landslides in Shikoku Island, Japan. Landslides 2(2): 97-105	Graphic
Japan	Shikoku Island	IE	A	I = 1000 × E^-1.23	100 < E < 230	n.a.	Hong Y, Hiura H, Shino K, Sassa K, Suemine A, Fukuoka H Wang G (2005) The influence of intense rainfall on the activity of large-scale crystalline schist landslides in Shikoku Island, Japan. Landslides 2(2): 97-105	Graphic