Rainfall Thresholds for the Initiation of Landslides

Friday 26 April 2024

All Rainfall thresholds, sorted by Continent

Continent	Nation	Zone	Threshold type	Landslide code	Equation	Range	Notes	Reference	Image
Africa	South Africa	Natal Group, Durban Area, KwaZulu-Natal	E	A	E_(2h) > 100-150 mm	n.a.	n.a.	Bell FG, Maud RR (2000) Landslides associated with the colluvial soils overlying the Natal Group in the greater Durban region of Natal, South Africa. Environ Geol 39(9): 1029–1038	Graphic
Africa	South Africa	Natal Group, Durban Area, KwaZulu-Natal	A_(d)	A	A_(15d) > 450 mm	n.a.	n.a.	Bell FG, Maud RR (2000) Landslides associated with the colluvial soils overlying the Natal Group in the greater Durban region of Natal, South Africa. Environ Geol 39(9): 1029–1038	Graphic
Africa	South Africa	Natal Group, Durban Area, KwaZulu-Natal	E_MAP	A	0.16 < E_MAP < 0.20	n.a.	Moderate events (3 to 6 landslides)	Bell FG, Maud RR (2000) Landslides associated with the colluvial soils overlying the Natal Group in the greater Durban region of Natal, South Africa. Environ Geol 39(9): 1029–1038	Graphic
Africa	South Africa	Natal Group, Durban Area, KwaZulu-Natal	E_MAP	A	E_MAP > 0.20	n.a.	Severe events (> 10 landslides)	Bell FG, Maud RR (2000) Landslides associated with the colluvial soils overlying the Natal Group in the greater Durban region of Natal, South Africa. Environ Geol 39(9): 1029–1038	Graphic
Africa	South Africa	Natal Group, Durban Area, KwaZulu-Natal	E_MAP	A	E_MAP < 0.12	n.a.	Landslides do not occur	Bell FG, Maud RR (2000) Landslides associated with the colluvial soils overlying the Natal Group in the greater Durban region of Natal, South Africa. Environ Geol 39(9): 1029–1038	Graphic
Africa	South Africa	Natal Group, Durban Area, KwaZulu-Natal	E_MAP	A	0.12 < E_MAP < 0.16	n.a.	Minor events (1 or 2 landslides)	Bell FG, Maud RR (2000) Landslides associated with the colluvial soils overlying the Natal Group in the greater Durban region of Natal, South Africa. Environ Geol 39(9): 1029–1038	Graphic
Asia	China	n.a.	ID	D	I = 49.11-6.81×D^1.00	1 < D < 5	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
Asia	Hong Kong	n.a.	A_(d), R	S	A_(15d) > 200 mm and R > 100 mm	n.a.	Severe events	Lumb P (1975) Slope failure in Hong Kong. Q J Eng Geol 8:31-65	Graphic
Asia	Hong Kong	n.a.	A_(d), R	S	A_(15d) > 350 mm and R > 100 mm	n.a.	Very severe events	Lumb P (1975) Slope failure in Hong Kong. Q J Eng Geol 8:31-65	Graphic
Asia	Hong Kong	n.a.	A_(d), R	S	A_(15d) > 50 mm and R > 50 mm	n.a.	Minor events	Lumb P (1975) Slope failure in Hong Kong. Q J Eng Geol 8:31-65	Graphic
Asia	Hong Kong	n.a.	ID	D	I = 41.83 ×D^-0.58	1 < D < 12	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
Asia	Hong Kong	n.a.	I_MAPD	D	I_MAP = 0.02×D^-0.68	1 < D < 12	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
Asia	Indonesia	n.a.	I_MAPD	D	I_MAP = 0.07-0.01×D^1.00	2 < D < 24	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
Asia	Indonesia	n.a.	ID	D	I = 92.06-10.68×D^1.00	2 < D < 4	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
Asia	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
Asia	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
Asia	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
Asia	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
Asia	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
Asia	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
Asia	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
Asia	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
Asia	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
Asia	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
Asia	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
Asia	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
Asia	n.a.	n.a.	E_MAP	A	0.05 < E_MAP < 0.10	n.a.	Intermediate probability of landslides	Bhandari RK, Senanayake KS, Thayalan N (1991) Pitfalls in the prediction on landslide through rainfall data. In: Landslides (Bell DH, ed). Rotterdam: A.A. Balkema, 2: 887–890	Graphic
Asia	n.a.	n.a.	E_MAP	A	E_MAP > 0.20	n.a.	Landslides will always occur	Bhandari RK, Senanayake KS, Thayalan N (1991) Pitfalls in the prediction on landslide through rainfall data. In: Landslides (Bell DH, ed). Rotterdam: A.A. Balkema, 2: 887–890	Graphic
Asia	n.a.	n.a.	E_MAP	A	E_MAP < 0.05	n.a.	Low probability of landslides	Bhandari RK, Senanayake KS, Thayalan N (1991) Pitfalls in the prediction on landslide through rainfall data. In: Landslides (Bell DH, ed). Rotterdam: A.A. Balkema, 2: 887–890	Graphic
Asia	n.a.	n.a.	E_MAP	A	0.10 < E_MAP < 0.20	n.a.	High probability of landslides	Bhandari RK, Senanayake KS, Thayalan N (1991) Pitfalls in the prediction on landslide through rainfall data. In: Landslides (Bell DH, ed). Rotterdam: A.A. Balkema, 2: 887–890	Graphic
Asia	Philippines	Mayon Volcano, Albay, Bicol	ID	L	I = 27.3×D^-0.38	0.167 < D < 3	n.a.	Rodolfo KS, Arguden AT (1991) Rain-lahar generation and sediment-delivery systems at Mayon Volcano, Philippines. In: Sedimentation in volcanic settings (Fisher RV, Smith GA, eds). Society of Economic Paleontologists and Mineralogists, Special Publication 45: 71–88	Graphic
Asia	Philippines	Pasig Potrero River, Central Luzon	ID	L	I = 9.23×D^-0.37	0.08 < D < 7.92	n.a.	Arboleda RA, Martinez ML (1996) 1992 lahars in the Pasig-Potrero River system. In: Fire and mud: eruptions and lahars of Mount Pinatubo (Newhall CG, Punongbayan RS, eds). Philippine Institute of Volcanology and Seismology, Quezon City and University of Washington Press, Seattle, 1126 pp	Graphic
Asia	Philippines	Sacobia River, Mount Pinatubo, Central Luzon	ID	L	I = 5.94×D^-1.50	0.167 < D < 3	n.a.	Tuñgol NM, Regalado MTM (1996) Rainfall, acoustic flow monitor records, and observed lahars of the Sacobia River in 1992. In: Fire and mud: eruptions and lahars of Mount Pinatubo (Newhall CG, Punongbayan RS, eds). Philippine Institute of Volcanology and Seismology, Quezon City and University of Washington Press, Seattle, 1126 pp	Graphic
Asia	Sri Lanka	n.a.	E	A	E_(3d) > 200 mm	n.a.	n.a.	Bhandari RK, Senanayake KS, Thayalan N (1991) Pitfalls in the prediction on landslide through rainfall data. In: Landslides (Bell DH, ed). Rotterdam: A.A. Balkema, 2: 887–890	Graphic
Asia	Taiwan	Central Taiwan	ID	D	I = 6.7×D^-0.20	0.7 < D < 40	After Chi-Chi earthquake	Jan CD, Chen CL (2005) Debris flows caused by Typhoon Herb in Taiwan. In: Debris flow Hazards and Related Phenomena (Jakob M, Hungr O, eds). Springer Berlin Heidelberg, 363-385	Graphic
Asia	Taiwan	Central Taiwan	ID	D	I = 13.5×D^-0.20	0.7 < D < 40	Before Chi-Chi earthquake	Jan CD, Chen CL (2005) Debris flows caused by Typhoon Herb in Taiwan. In: Debris flow Hazards and Related Phenomena (Jakob M, Hungr O, eds). Springer Berlin Heidelberg, 363-385	Graphic
Asia	Taiwan	n.a.	ID	A	I = 115.47×D^-0.80	1 < D < 400	n.a.	Chien-Yuan C, Tien-Chien C, Fan-Chieh Y, Wen-Hui Y, Chun-Chieh T (2005) Rainfall duration and debris-flow initiated studies for real-time monitoring. Environmental Geology 47: 715-724	Graphic
Europe	Austria	Carinthia and East Tyrol	ID	S	I = 41.66×D^-0.77	1 < D < 1000	n.a.	Moser M, Hohensinn F (1983) Geotechnical aspects of soil slips in Alpine regions. Engineering Geology 19: 185–211	Graphic
Europe	Central and Southern Europe	n.a.	I_MAPD	A	I_MAP = 0.0015×D^-0.71	0.1 < D < 4000	Mild, mid-latitude climates	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	ID	A	I = 9.40×D^-0.56	0.1 < D < 4000	n.a.	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	ID	A	I = 8.76×D^-0.61	0.1 < D < 700	(Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	ID	A	I = 0.52×D^-0.16	300 < D < 4000	(Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	ID	A	I = 15.56×D^-0.70	0.1 < D < 4000	Mild, mid-latitude climates	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	ID	A	I = 18.60×D^-0.81	0.1 < D < 700	Mild, mid-latitude climates (Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	ID	A	I = 0.82×D^-0.19	300 < D < 4000	Mild, mid-latitude climates (Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	ID	A	I = 7.56×D^-0.48	0.1 < D < 3000	Highlands, severe mid-latitude climates	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	ID	A	I = 8.53×D^-0.64	0.1 < D < 3000	Highlands, severe mid-latitude climates (Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	I_MAPD	A	I_MAP = 0.007×D^-0.54	0.1 < D < 4000	n.a.	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	I_MAPD	A	I_MAP = 0.0064×D^-0.64	0.1 < D < 700	(Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	I_MAPD	A	I_MAP = 0.00066×D^-0.13	300 < D < 4000	(Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	I_MAPD	A	I_MAP = 0.0194×D^-0.73	0.1 < D < 700	Mild, mid-latitude climates (Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	I_MAPD	A	I_MAP = 0.00099×D^-0.19	300 < D < 4000	Mild, mid-latitude climates (Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	I_MAPD	A	I_MAP = 0.008×D^-0.51	0.1 < D < 3000	Highlands, severe mid-latitude climates	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	I_MAPD	A	I_MAP = 0.0064×D^-0.63	0.1 < D < 3000	Highlands, severe mid-latitude climates (Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	I_RDND	A	I_RDN = 1.18×D^-0.56	0.1 < D < 4000	n.a.	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	I_RDND	A	I_RDN = 1.01×D^-0.61	0.1 < D < 700	(Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	I_RDND	A	I_RDN = 0.072×D^-0.10	300 < D < 4000	(Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	I_RDND	A	I_RDN = 2.18×D^-0.70	0.1 < D < 4000	Mild, mid-latitude climates	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	I_RDND	A	I_RDN = 2.79×D^-0.76	0.1 < D < 700	Mild, mid-latitude climates (Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	I_RDND	A	I_RDN = 0.138×D^-0.19	300 < D < 4000	Mild, mid-latitude climates (Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	I_RDND	A	I_RDN = 1.18×D^-0.56	0.1 < D < 3000	Highlands, severe mid-latitude climates	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Central and Southern Europe	n.a.	I_RDND	A	I_RDN = 0.99×D^-0.63	0.1 < D < 3000	Highlands, severe mid-latitude climates (Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2007) Rainfall threholds for the initiation of landslides in central and southern Europe. Meteorology and Atmospheric Physics 98: 239-267	Graphic
Europe	Italy	Apuane Alps, Tuscany	ID	Sh	I = 26.871×D^-0.638	0.1 < D < 35	Lower threshold	Giannecchini R (2005) Rainfall triggering soil slips in the southern Apuane Alps (Tuscany, Italy). Advances in Geosciences 2: 21-24	Graphic
Europe	Italy	Apuane Alps, Tuscany	E_MAPI	Sh	E_MAP = 6.5471 - 1.4916 × ln I	3 < I < 50	Lower threshold	Giannecchini R (2005) Rainfall triggering soil slips in the southern Apuane Alps (Tuscany, Italy). Advances in Geosciences 2: 21-24	Graphic
Europe	Italy	Apuane Alps, Tuscany	E_MAPD	Sh	E_MAP = 5.1198 + 0.2032×D	1 < D < 30	Upper threshold	Giannecchini R (2005) Rainfall triggering soil slips in the southern Apuane Alps (Tuscany, Italy). Advances in Geosciences 2: 21-24	Graphic
Europe	Italy	Apuane Alps, Tuscany	E_MAPD	Sh	E_MAP = 1.0711 + 0.1974×D	1 < D < 30	Lower threshold	Giannecchini R (2005) Rainfall triggering soil slips in the southern Apuane Alps (Tuscany, Italy). Advances in Geosciences 2: 21-24	Graphic
Europe	Italy	Apuane Alps, Tuscany	ED	D	E = 375.00 + 1.25×D	12 < D ≤ 24	For catastrophic landslides	Annunziati A, Focardi A, Focardi P, Martello S, Vannocci P (2000) Analysis of the rainfall thresholds that induced debris flows in the area of Apuan Alps - Tuscany, Italy (19 June 1996 storm). In: Proceeding of the EGS Plinius Conference on Mediterranean Storms. Maratea, Italy, 485-493	Graphic
Europe	Italy	Apuane Alps, Tuscany	ED	D	E = 150.00 + 20.00×D	3 < D ≤ 12	For catastrophic landslides	Annunziati A, Focardi A, Focardi P, Martello S, Vannocci P (2000) Analysis of the rainfall thresholds that induced debris flows in the area of Apuan Alps - Tuscany, Italy (19 June 1996 storm). In: Proceeding of the EGS Plinius Conference on Mediterranean Storms. Maratea, Italy, 485-493	Graphic
Europe	Italy	Apuane Alps, Tuscany	ED	D	E = 45.00 + 55.00×D	1 ≤ D ≤ 3	For catastrophic landslides	Annunziati A, Focardi A, Focardi P, Martello S, Vannocci P (2000) Analysis of the rainfall thresholds that induced debris flows in the area of Apuan Alps - Tuscany, Italy (19 June 1996 storm). In: Proceeding of the EGS Plinius Conference on Mediterranean Storms. Maratea, Italy, 485-493	Graphic
Europe	Italy	Apuane Alps, Tuscany	ED	D	E = 165.00 + 1.25×D	12 < D ≤ 24	Minimum threshold	Annunziati A, Focardi A, Focardi P, Martello S, Vannocci P (2000) Analysis of the rainfall thresholds that induced debris flows in the area of Apuan Alps - Tuscany, Italy (19 June 1996 storm). In: Proceeding of the EGS Plinius Conference on Mediterranean Storms. Maratea, Italy, 485-493	Graphic
Europe	Italy	Apuane Alps, Tuscany	ED	D	E = 66.67 + 9.44×D	3 < D ≤ 12	Minimum threshold	Annunziati A, Focardi A, Focardi P, Martello S, Vannocci P (2000) Analysis of the rainfall thresholds that induced debris flows in the area of Apuan Alps - Tuscany, Italy (19 June 1996 storm). In: Proceeding of the EGS Plinius Conference on Mediterranean Storms. Maratea, Italy, 485-493	Graphic
Europe	Italy	Apuane Alps, Tuscany	ED	D	E = 27.50 + 22.50×D	1 ≤ D ≤ 3	Minimum threshold	Annunziati A, Focardi A, Focardi P, Martello S, Vannocci P (2000) Analysis of the rainfall thresholds that induced debris flows in the area of Apuan Alps - Tuscany, Italy (19 June 1996 storm). In: Proceeding of the EGS Plinius Conference on Mediterranean Storms. Maratea, Italy, 485-493	Graphic
Europe	Italy	Apuane Alps, Tuscany	ID	Sh	I = 76.199×D^-0.692	0.1 < D ≤ 12	Upper threshold	Giannecchini R (2005) Rainfall triggering soil slips in the southern Apuane Alps (Tuscany, Italy). Advances in Geosciences 2: 21-24	Graphic
Europe	Italy	Apuane Alps, Tuscany	ID	Sh	I = 38.363×D^-0.743	0.1 < D ≤ 12	Lower threshold	Giannecchini R (2005) Rainfall triggering soil slips in the southern Apuane Alps (Tuscany, Italy). Advances in Geosciences 2: 21-24	Graphic
Europe	Italy	Apuane Alps, Tuscany	ID	Sh	I = 85.584×D^-0.781	0.1 < D < 35	Upper threshold	Giannecchini R (2005) Rainfall triggering soil slips in the southern Apuane Alps (Tuscany, Italy). Advances in Geosciences 2: 21-24	Graphic
Europe	Italy	Apuane Alps, Tuscany	E_MAPI	Sh	E_MAP = 14.183 - 2.4812 × ln I	10 < I < 50	Upper threshold	Giannecchini R (2005) Rainfall triggering soil slips in the southern Apuane Alps (Tuscany, Italy). Advances in Geosciences 2: 21-24	Graphic
Europe	Italy	Campania	ID	A	I = 28.10×D^-0.74	1 < D < 600	n.a.	Calcaterra D, Parise M, Palma B, Pelella L (2000) The influence of meteoric events in triggering shallow landslides in pyroclastic deposits of Campania, Italy. In: Proceedings of the 8th International Symposium on Landslides, (Bromhead E, Dixon N, Ibsen ML, eds). Cardiff, Wales: A.A. Balkema, 1: 209-214	Graphic
Europe	Italy	Cancia, Dolomites, Belluno, Veneto	E_MAPI	D	E_MAP = 3.93 - 1.36 × ln I	I > 2	n.a.	Bacchini M, Zannoni A (2003) Relations between rainfall and triggering of debris-flow: a case study of Cancia (Dolomites, Northeastern Italy). Natural Hazards and Earth System Sciences 3: 71-79	Graphic
Europe	Italy	Cancia, Dolomites, Friuli Venezia Giulia	I_MAPD	D	I_MAP = 0.74×D^-0.56	0.1 < D < 100	n.a.	Bacchini M, Zannoni A (2003) Relations between rainfall and triggering of debris-flow: a case study of Cancia (Dolomites, Northeastern Italy). Natural Hazards and Earth System Sciences 3: 71-79	Graphic
Europe	Italy	Central Alps, Lombardy	I_MAPD	D	I_MAP = 2.0×D^-0.55	1 < D < 100	n.a.	Ceriani M, Lauzi S, Padovan N (1992) Rainfall and landslides in the Alpine area of Lombardia Region, central Alps, Italy. In: Internationales Symposium. Bern: Interpraevent 2: 9-20	Graphic
Europe	Italy	Champeyron Basin, Piedmont	ID	D	I = 18.675×D^-0.565	1 < D < 24	A(60d) < 14% of MAP	Bolley S, Oliaro P (1999) Analisi dei debris flows in alcuni bacini campione dell'Alta Val Susa. Geoingegneria Ambientale e Mineraria, Marzo: 69-74	Graphic
Europe	Italy	Champeyron Basin, Piedmont	ID	D	I = 12.649×D^-0.5324	1 < D < 24	A(60d) > 14% of MAP	Bolley S, Oliaro P (1999) Analisi dei debris flows in alcuni bacini campione dell'Alta Val Susa. Geoingegneria Ambientale e Mineraria, Marzo: 69-74	Graphic
Europe	Italy	Cordevole River, Belluno, Veneto	A_(d), R	Sh	A_(15d) > 250 mm and R > 70 mm	n.a.	n.a.	Pasuto A, Silvano S (1998). Rainfall as a triggering factor of shallow mass movements. A case study in the Dolomites, Italy. Environ Geol 35(2-3): 184-189	Graphic
Europe	Italy	Lanzo Valley, Piedmont	I_MAPD	Sh	I_MAP = 1.6058×D^-0.4644	1 < D < 200	n.a.	Aleotti P, Baldelli P, Bellardone G, Quaranta N, Tresso F, Troisi C, Zani A (2002) Soil slips triggered by October 13-16, 2000 flooding event in the Piedmont Region (North West Italy): critical analysis of rainfall data. Geologia Tecnica e Ambientale 1: 15-25	Graphic
Europe	Italy	Lombardy	ID	A	I = 20.1×D^-0.55	1 < D < 1000	n.a.	Ceriani M, Lauzi S, Padovan N (1992) Rainfall and landslides in the Alpine area of Lombardia Region, central Alps, Italy. In: Internationales Symposium. Bern: Interpraevent 2: 9-20	Graphic
Europe	Italy	Montaldo Area, Calabria	A_(d)	A	A_(50d) > 530 mm	n.a.	n.a.	Sorriso-Valvo M, Agnesi V, Gulla G, Merende L, Antronico L, Di Maggio C, Filice E, Petrucci O, Tansi C (1994) Temporal and spatial occurrence of landsliding and correlation with precipitation time series in Montaldo Uffugo (Calabria) and Imera (Sicilia) areas. In: Temporal Occurrence and Forecasting of Landslides in the European Community (Casale R, Fantechi R, Flageollet JC, eds). Final Report 2: 825- 869	Graphic
Europe	Italy	Moscardo Torrent, Friuli Venezia Giulia	ID	A	I = 15×D^-0.70	1 < D < 30	n.a.	Marchi L, Arattano M, Deganutti AM (2002) Ten years of debris-flow monitoring in the Moscardo Torrent (Italian Alps). Geomorphology 46: 1-17	Graphic
Europe	Italy	n.a.	E	A	E_(1-3d) > 100 mm	n.a.	For marly, arenaceous rocks	Canuti P, Focardi P, Garzonio CA (1985) Correlation between rainfall and landslides. Bull Int Assoc Eng Geol 32: 49-54	Graphic
Europe	Italy	North Eastern Alps	I_MAPD	D	I_MAP = 0.026×D^-0.507	0.1 < D < 24	n.a.	Paronuzzi P, Coccolo A, Garlatti G (1998) Eventi meteorici critici e debris flows nei bacini montani del Friuli. L'Acqua, Associazione Idrotecnica Italiana, Sezione I/Memorie: 39-50	Graphic
Europe	Italy	North Eastern Alps	ID	D	I = 47.742×D^-0.507	0.1 < D < 24	n.a.	Paronuzzi P, Coccolo A, Garlatti G (1998) Eventi meteorici critici e debris flows nei bacini montani del Friuli. L'Acqua, Associazione Idrotecnica Italiana, Sezione I/Memorie: 39-50	Graphic
Europe	Italy	Orco Valley, Piedmont	I_MAPD	Sh	I_MAP = 1.6832×D^-0.5533	1 < D < 200	n.a.	Aleotti P, Baldelli P, Bellardone G, Quaranta N, Tresso F, Troisi C, Zani A (2002) Soil slips triggered by October 13-16, 2000 flooding event in the Piedmont Region (North West Italy): critical analysis of rainfall data. Geologia Tecnica e Ambientale 1: 15-25	Graphic
Europe	Italy	Ossola Valley, Piedmont	I_MAPD	Sh	I_MAP = 0.6222×D^-0.2282	1 < D < 200	n.a.	Aleotti P, Baldelli P, Bellardone G, Quaranta N, Tresso F, Troisi C, Zani A (2002) Soil slips triggered by October 13-16, 2000 flooding event in the Piedmont Region (North West Italy): critical analysis of rainfall data. Geologia Tecnica e Ambientale 1: 15-25	Graphic
Europe	Italy	Perilleux Basin, Piedmont	ID	D	I = 10.67×D^-0.5043	1 < D < 24	A(60d) < 9% of MAP	Bolley S, Oliaro P (1999) Analisi dei debris flows in alcuni bacini campione dell'Alta Val Susa. Geoingegneria Ambientale e Mineraria, Marzo: 69-74	Graphic
Europe	Italy	Perilleux Basin, Piedmont	ID	D	I = 11.00×D^-0.4459	1 < D < 24	A(60d)> 9% of MAP	Bolley S, Oliaro P (1999) Analisi dei debris flows in alcuni bacini campione dell'Alta Val Susa. Geoingegneria Ambientale e Mineraria, Marzo: 69-74	Graphic
Europe	Italy	Peri-Vesuvian area, Campania	ID	D	I = 176.40×D^-0.90	0.1 < D < 1000	Volcanic soils	Guadagno FM (1991) Debris flows in the Campanian volcaniclastic soil (Southern Italy). In: Proceedings International Conference on slope stability. Isle of Wight: Thomas Telford, 125-130	Graphic
Europe	Italy	Piedmont	I_MAPC_MAP	Sh	I_MAP= 0.70 - 0.09 × ln C_MAP	7 < C_MAP < 60	High magnitude	Aleotti P (2004) A warning system for rainfall-induced shallow failures. Engineering Geology 73: 247-265	Graphic
Europe	Italy	Piedmont	E_MAPI	S, D, M	0.13×I^-0.12	1.5 ≤ I ≤ 8	For winter and spring	Govi M, Mortara G, Sorzana P (1985) Eventi idrologici e frane. Geologia Applicata & Ingegneria 20(2): 359–375	Graphic
Europe	Italy	Piedmont	I_MAPC_MAP	Sh	I_MAP= 0.54 - 0.09 × ln C_MAP	7 < C_MAP < 60	General threshold	Aleotti P, Baldelli P, Bellardone G, Quaranta N, Tresso F, Troisi C, Zani A (2002) Soil slips triggered by October 13-16, 2000 flooding event in the Piedmont Region (North West Italy): critical analysis of rainfall data. Geologia Tecnica e Ambientale 1: 15–25	Graphic
Europe	Italy	Piedmont	E_MAPI	S, D, M	0.30×I^-0.39	3.5 ≤ I ≤ 20	For summer and autumn	Govi M, Mortara G, Sorzana P (1985) Eventi idrologici e frane. Geologia Applicata & Ingegneria 20(2): 359–375	Graphic
Europe	Italy	Piedmont	I_MAPC_MAP	Sh	I_MAP= 0.51 - 0.09 × ln C_MAP	7 < C_MAP < 60	Low magnitude	Aleotti P (2004) A warning system for rainfall-induced shallow failures. Engineering Geology 73: 247-265	Graphic
Europe	Italy	Piedmont	E_MAP	A	0.28 < E_MAP < 0.38	n.a.	up to 60 landslides per km2	Govi M, Sorzana PF (1980) Landslide susceptibility as function of critical rainfall amount in Piedmont basin (North-Western Italy). Studia Geomorphologica Carpatho-Balcanica 14: 43-60	Graphic
Europe	Italy	Piedmont	E_MAPI	S, D, M	0.72×I^-0.68	20 ≤ I ≤ 50	For summer	Govi M, Mortara G, Sorzana P (1985) Eventi idrologici e frane. Geologia Applicata & Ingegneria 20(2): 359–375	Graphic
Europe	Italy	Piedmont	E_MAP	A	0.22 < E_MAP < 0.31	n.a.	up to 30 landslides per km2	Govi M, Sorzana PF (1980) Landslide susceptibility as function of critical rainfall amount in Piedmont basin (North-Western Italy). Studia Geomorphologica Carpatho-Balcanica 14: 43-60	Graphic
Europe	Italy	Piedmont	E_MAP	A	0.10 < E_MAP < 0.25	n.a.	3 to 15 landslides per km2	Govi M, Sorzana PF (1980) Landslide susceptibility as function of critical rainfall amount in Piedmont basin (North-Western Italy). Studia Geomorphologica Carpatho-Balcanica 14: 43-60	Graphic
Europe	Italy	Piedmont	I_MAPD	Sh	I_fMAP = 4.62×D^-0.79	2 < D < 150	n.a.	Aleotti P (2004) A warning system for rainfall-induced shallow failures. Engineering Geology 73: 247-265	Graphic
Europe	Italy	Piedmont	I_MAPD	Sh	I_MAP = 0.76×D^-0.33	2 < D < 150	n.a.	Aleotti P (2004) A warning system for rainfall-induced shallow failures. Engineering Geology 73: 247-265	Graphic
Europe	Italy	Piedmont	C_MAPD	Sh	C_MAP = -10.465 + 8.35×lnD	5 < D < 30	n.a.	Aleotti P (2004) A warning system for rainfall-induced shallow failures. Engineering Geology 73: 247-265	Graphic
Europe	Italy	Piedmont	ID	A	I = 44.668×D^-0.78×N	1 < D < 1000	n.a.	Barbero S, Rabuffetti D, Zaccagnino M (2004) Una metodologia per la definizione delle soglie pluviometriche a supporto dell'emissione dell'allertamento. In: Proceedings of 29th Convegno Nazionale di Idraulica e Costruzioni Idrauliche. Trento, 7-10 settembre 2004, 211-217	Graphic
Europe	Italy	Piedmont	ID	Sh	I = 19×D^-0.50	4 < D < 150	n.a.	Aleotti P (2004) A warning system for rainfall-induced shallow failures. Engineering Geology 73: 247–265	Graphic
Europe	Italy	Rho Basin, Susa Valley, Piedmont	ID	D	I = 9.521×D^-0.4955	1 < D < 24	A(60d) > 14% of MAP	Bolley S, Oliaro P (1999) Analisi dei debris flows in alcuni bacini campione dell'Alta Val Susa. Geoingegneria Ambientale e Mineraria, Marzo: 69-74	Graphic
Europe	Italy	Rho Basin, Susa Valley, Piedmont	ID	D	I=11.698×D^-0.4783	1 < D < 24	A(60d) < 14% of MAP	Bolley S, Oliaro P (1999) Analisi dei debris flows in alcuni bacini campione dell'Alta Val Susa. Geoingegneria Ambientale e Mineraria, Marzo: 69-74	Graphic
Europe	Italy	Sarno, Campania	R	A	R > 75 mm	n.a.	For saturated pyroclastic soils, upper threshold	Biafiore M, Braca G, De Blasio A, Martone M, Onorati G, Tranfaglia G (2002) Il monitoraggio ambientale dei territori campani a rischio di frane e di alluvioni: lo sviluppo della rete idropluviometrica del Servizio Idrografico e Mareografico Nazionale. Unpublished report.	Graphic
Europe	Italy	Sarno, Campania	R	A	R > 55 mm	n.a.	For saturated pyroclastic soils, lower threshold	Biafiore M, Braca G, De Blasio A, Martone M, Onorati G, Tranfaglia G (2002) Il monitoraggio ambientale dei territori campani a rischio di frane e di alluvioni: lo sviluppo della rete idropluviometrica del Servizio Idrografico e Mareografico Nazionale. Unpublished report.	Graphic
Europe	Italy	Sesia Valley, Piedmont	I_MAPD	Sh	I_MAP = 1.1122×D^-0.2476	1 < D < 200	n.a.	Aleotti P, Baldelli P, Bellardone G, Quaranta N, Tresso F, Troisi C, Zani A (2002) Soil slips triggered by October 13-16, 2000 flooding event in the Piedmont Region (North West Italy): critical analysis of rainfall data. Geologia Tecnica e Ambientale 1: 15-25	Graphic
Europe	Italy	Valtellina, Lombardy	ID	S	I = 44.668×D^-0.78	1 < D < 1000	n.a.	Cancelli A, Nova R (1985) Landslides in soil debris cover triggered by rainstorms in Valtellina (central Alps - Italy). In: Proceedings of 4th International Conference and Field Workshop on Landslides. Tokyo: The Japan Geological Society, 267–272	Graphic
Europe	Italy	Valzangona, Marche	ID	A	I = 18.83×D^-0.59	24 < D < 3360	n.a.	Floris M, Mari M, Romeo RW, Gori U (2004) Modelling of landslide-triggering factors - A case study in the Northern Apennines, Italy. In: Lecture Notes in Earth Sciences 104: Engineering Geology for Infrastructure Planning in Europe (Hack R, Azzam R, Charlier R, eds). Springer-Verlag Berlin Heidelberg, 745-753	Graphic
Europe	Norway	n.a.	C_MAPD	D	C_MAP = 1.2×D^0.60	0.1 < E < 180	n.a.	Sandersen F, Bakkehøi S, Hestnes E, Lied K (1996) The influence of meteorological factors on the initiation of debris flows, rockfalls, rockslides and rockmass stability. In: Landslides (Senneset, ed). Rotterdam: A.A. Balkema, 97–114	Graphic
Europe	Portugal	Nord Of Lisbon, Portugal	ED	A	E = 70.00 + 0.2625×D	0.1 < D < 2400	n.a.	Zezere JL, Rodrigues ML (2002) Rainfall thresholds for landsliding in Lisbon Area (Portugal). In: Landslides (Rybar J, Stemberk J, Wagner P, eds). Lisse: A.A. Balkema, 333–338	Graphic
Europe	Portugal	North of Lisbon	ID	A	I = 84.3×D^-0.57	0.1 < D < 2000	n.a.	Zezere JL, Trigo RM, Trigo IF (2005) Shallow and deep landslides induced by rainfall in the Lisbon region (Portugal): assessment of relationships with the North Atlantic Oscillation. Natural Hazards and Earth System Sciences 5: 331-344	Graphic
Europe	Spain	Eastern Pyrenees Mountains	E	A	E_(24-36h) > 180-190 mm	n.a.	Slight shallow landsliding	Corominas J, Moya J (1999) Reconstructing recent landslide activity in relation to rainfall in the Llobregat River basin, Eastern Pyrences, Spain. Geomorphology 30: 79-93	Graphic
Europe	Spain	Eastern Pyrenees Mountains	E	A	E_(24-48h) > 300 mm	n.a.	Widespread landsliding	Corominas J, Moya J (1999) Reconstructing recent landslide activity in relation to rainfall in the Llobregat River basin, Eastern Pyrences, Spain. Geomorphology 30: 79-93	Graphic
Europe	Spain	Llobregat valley, Pyrenees Mountains	ED	A	E = 133.00 + 0.19×D	84 < D < 1092	n.a.	Corominas J, Moya J (1999) Reconstructing recent landslide activity in relation to rainfall in the Llobregat River basin, Eastern Pyrences, Spain. Geomorphology 30: 79-93	Graphic
Europe	Spain	Llobregat valley, Pyrenees Mountains	R	Sh, D	R > 160-200 mm	n.a.	Absence of antecedent rain	Corominas J, Moya J (1996) Historical landslides in the Eastern Pyrenees and their relation to rainy events. In: Landslides (Chacon J, Irigaray C, Fernandez T, eds). Rotterdam: A.A. Balkema, 125-132	Graphic
Europe	Spain	Pyrenees Mountains	ID	A	I = 17.96×D^-0.59	D > 168	E > 90 mm	Corominas J, Ayala FJ, Cendrero A, Chacon J, Díaz de Teran JR, Gonzales A, Moja J, Vilaplana JM (2005) Impacts on natural hazard of climatic origin. In ECCE Final Report: A Preliminary Assessment of the Impacts in Spain due to the Effects of Climate Change. Ministerio de Medio Ambiente.	Graphic
Europe	Switzerland	n.a.	ID	A	I = 32×D^-0.70	1 < D < 45	n.a.	Zimmermann M, Mani P, Gamma P, Gsteiger P, Heiniger O, Hunziker G (1997) Murganggefahr und Climaänderung - ein GIS-basierter Ansatz. In: Schlussbericht Nationalen Forschngs Programmes, NFP 31. Zürich: vdf Hochschulverlag AG an der ETH, 161 pp	Graphic
North America	Canada	North Shore Mountains	ID	Sh	I = 4.0×D^-0.45	0.1 < D < 150	n.a.	Jakob M, Weatherly H (2003) A hydroclimatic threshold for landslide initiation on the North Shore Mountains of Vancouver, British Columbia. Geomorphology 54: 137-156	Graphic
North America	Jamaica	Eastern Jamaica	ID	Sh	I = 11.5×D^-0.26	1 < D < 150	n.a.	Ahmad R (2003) Developing early warning systems in Jamaica: rainfall thresholds for hydrological hazards. National Disaster Management Conference, Ocho Rios, St Ann, Jamaica, 9-10 September 2003. at website: http://www.mona.uwi.edu/uds/rainhazards_files/frame.htm	Graphic
North America	Nicaragua, El Salvador	n.a.	I_CE_96h	L	I_C = 258 × E_96h^-0.32	0 < E_96h < 500	n.a.	Heyerdahl H, Harbitz CB, Domaas U, Sandersen F, Tronstad K, Nowacki F, Engen A, Kjekstad O, Dévoli G, Buezo SG, Diaz MR, Hernandez W (2003) Rainfall induced lahars in volcanic debris in Nicaragua and El Salvador: practical mitigation. In: Proceedings of International Conference on Fast Slope Movements - Prediction and Prevention for risk Mitigation, IC-FSM2003. Naples, Italy, 11-13 May	Graphic
North America	Puerto Rico	n.a.	I_MAPD	D	I_MAP = 0.06×D^-0.59	1 < D < 12	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
North America	Puerto Rico	n.a.	ID	A	I = 91.46×D^-0.82	2 < D < 312	n.a.	Larsen MC, Simon A (1993) A rainfall intensity-duration threshold for landslides in a humid-tropical environment, Puerto Rico. Geografiska Annaler Series A-Physical Geography 75(1-2): 13-23	Graphic
North America	Puerto Rico	n.a.	ID	D	I = 66.18×D^-0.52	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
North America	USA	Alamanda County	R	A	R > 180 mm	n.a.	n.a.	Nilsen TH, Taylor FA, Brabb EE (1976) Recent landslides in Alamanda County, California (1940-71). US Geological Survey Bul 1398	Graphic
North America	USA	Blue Ridge	ID	D	I = 116.48×D^-0.63	2 < D < 16	n.a.	Wieczorek GF, Morgan BA, Campbell RH (2000) Debris flow hazards in the Blue Ridge of Central Virginia. Environ Eng Geosci 6: 3–23	Graphic
North America	USA	Blue Ridge	I_MAPD	D	I_MAP = 0.09×D^-0.63	2 < D < 16	n.a.	Wieczorek GF, Morgan BA, Campbell RH (2000) Debris flow hazards in the Blue Ridge of Central Virginia. Environ Eng Geosci 6: 3–23	Graphic
North America	USA	Central Santa Cruz Mountains	ID	D	I = 1.7+9×D^-1.00	1 < D < 6.5	n.a.	Wieczorek GF (1987) Effect of rainfall intensity and duration on debris flows in central Santa Cruz Mountains. In: Debris flow/avalanches: process, recognition, and mitigation (Costa JE, Wieczorek GF, eds). Geological Society of America, Reviews in Engineering Geology, 7: 93–104	Graphic
North America	USA	Chalk Cliffs, Colorado	ID	D	I = 6.61×D^-0.77	0 < D < 2.6	n.a.	Coe A, Kinner DA, Godt JW (In Press) Initiation conditions for runoff-generated debris flows at Chalk Cliffs, Central Colorado, USA	Graphic
North America	USA	Contra Costa County	E	Sh	E > 177.8 mm	n.a.	Abundant landslides	Nilsen TH, Turner BL (1975) Influence of rainfall and ancient landslide deposits on recent landslides (1950-1971) in urban areas of Contra Costa County, California. US Geological Survey Bul 1388	Graphic
North America	USA	Kaluanui, Honolulu	ED	D	E = 15.75 + 12.19×D	3 < D ≤ 6	Safety threshold	Wilson RC, Torikai JD, Ellen SD (1992) Development of rainfall thresholds for debris flows in the Honolulu District, Oahu. US Geological Survey Open-File Report 92-521, 45 pp	Graphic
North America	USA	Kaluanui, Honolulu	ED	D	E = 13.84 + 12.83×D	1 ≤ D ≤ 3	Safety threshold	Wilson RC, Torikai JD, Ellen SD (1992) Development of rainfall thresholds for debris flows in the Honolulu District, Oahu. US Geological Survey Open-File Report 92-521, 45 pp	Graphic
North America	USA	Kaluanui, Honolulu	ED	D	E = 53.34 + 17.78×D	3 < D ≤ 6	For abundant landslides	Wilson RC, Torikai JD, Ellen SD (1992) Development of rainfall thresholds for debris flows in the Honolulu District, Oahu. US Geological Survey Open-File Report 92-521, 45 pp	Graphic
North America	USA	Kaluanui, Honolulu	ED	D	E = 8.76 + 32.64×D	1 ≤ D ≤ 3	For abundant landslides	Wilson RC, Torikai JD, Ellen SD (1992) Development of rainfall thresholds for debris flows in the Honolulu District, Oahu. US Geological Survey Open-File Report 92-521, 45 pp	Graphic
North America	USA	Los Angeles Area	R	A	R > 235 mm	n.a.	n.a.	Campbell RH (1975) Soil slips, debris flows, and rainstorms in the Santa Monica Mountains and vicinity, southern California. In: US Geological Survey Professional Paper 851. Washington DC: U.S. Government Printing Office, 51 pp	Graphic
North America	USA	Mettman Ridge	ID	A	I = 9.9×D^-0.52	1 < D < 170	n.a.	Montgomery DR, Schmidt KM, Greenberg HM, Dietrich WE (2000) Forest clearing and regional landsliding. Geology 28(4): 311-314	Graphic
North America	USA	n.a.	ID	D	I = 26.51 ×D^-0.19	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
North America	USA	n.a.	I_MAPD	D	I_MAP = 0.03×D^-0.33	1 < D < 12	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
North America	USA	n.a.	I_MAPD	D	I_MAP = 0.03×D^-0.21	0.5 < D < 8	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
North America	USA	n.a.	IE	D	I = 31.99 - 0.10×E	0 < E < 315	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
North America	USA	n.a.	ID	D	I = 35.23 ×D^-0.54	3 < D < 12	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
North America	USA	Nuuanu, Honolulu	ED	D	E = 48.26 + 15.24×D	3 < D ≤ 6	For abundant landslides	Wilson RC, Torikai JD, Ellen SD (1992) Development of rainfall thresholds for debris flows in the Honolulu District, Oahu. US Geological Survey Open-File Report 92-521, 45 pp	Graphic
North America	USA	Nuuanu, Honolulu	ED	D	E = 12.45 + 27.18×D	1 ≤ D ≤ 3	For abundant landslides	Wilson RC, Torikai JD, Ellen SD (1992) Development of rainfall thresholds for debris flows in the Honolulu District, Oahu. US Geological Survey Open-File Report 92-521, 45 pp	Graphic
North America	USA	Nuuanu, Honolulu	ED	D	E = 9.91 + 3.22×D	3 < D ≤ 6	Safety threshold	Wilson RC, Torikai JD, Ellen SD (1992) Development of rainfall thresholds for debris flows in the Honolulu District, Oahu. US Geological Survey Open-File Report 92-521, 45 pp	Graphic
North America	USA	Nuuanu, Honolulu	ED	D	E = 13.08 + 2.16×D	1 ≤ D ≤ 3	Safety threshold	Wilson RC, Torikai JD, Ellen SD (1992) Development of rainfall thresholds for debris flows in the Honolulu District, Oahu. US Geological Survey Open-File Report 92-521, 45 pp	Graphic
North America	USA	San Benito County	E	A	E > 250 mm	n.a.	n.a.	Oberste-lehn D (1976) Slope stability of the Lomerias Muertas area, San Benito County, California. PhD, Stanford University, California	Graphic
North America	USA	San Francisco Bay Area	E	Sh	E > 254 mm	n.a.	Greater propensity for landslides	Mark and Newman cited in Cannon SH, Ellen SD (1985) Rainfall conditions for abundant debris avalanches, San Francisco Bay region, California. Calif Geol 38: 267–272	Graphic
North America	USA	San Francisco Bay Area	I_MAPD	D	D = 46.1-3.6·10³×I_MAP + 7.4·10⁴×I_MAP²	1 < D < 24	n.a.	Cannon SH (1988) Regional rainfall-threshold conditions for abundant debris-flow activity. In: Landslides, Floods, and Marine Effects of the Etorm of January 3-5, 1982, in the San Francisco Bay Region, California (Ellen SD, Wieczorek GF, eds). US Geological Survey Professional Paper 1434, 35-42	Graphic
North America	USA	San Francisco Bay Area	ID	D	I = 2.5+300×D^-2.00	5.5 < D < 24	Low MAP	Cannon SH, Ellen SD (1985) Rainfall conditions for abundant debris avalanches, San Francisco Bay region, California. Calif Geol 38: 267–272	Graphic
North America	USA	San Francisco Bay Area	ID	D	I = 6.9+38×D^-1.00	2 < D < 24	High MAP	Cannon SH, Ellen SD (1985) Rainfall conditions for abundant debris avalanches, San Francisco Bay region, California. Calif Geol 38: 267–272	Graphic
North America	USA	Seattle Area	ID	S	I = 82.73×D^-1.13	20 < D < 55	n.a.	Baum RL, Godt JW, Harp EL, McKenna JP (2005) Early warning of landslides for rail traffic between Seattle and Everett, Washington. In: Landslide Risk Management, Proceedings of the 2005 International Conference on Landslide Risk Management (Hungr O, Fell R, Couture R, Ebdrhardt E, eds). New York: A.A. Balkema, 731-740	Graphic
South America	Brazil	n.a.	E_MAP	A	E_MAP < 0.08	n.a.	Not likely to trigger landslides	Guidicini G, Iwasa OY (1977) Tentative correlation between rainfall and landslides in a humid tropical environment. Bulletin of the International Association of Engineering Geology 16: 13-20	Graphic
South America	Brazil	n.a.	I_MAPD	D	I_MAP = 0.06-0.02×D^1.00	0.5 < D < 2	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
South America	Brazil	n.a.	ID	D	I = 63.38-22.19×D^1.00	0.5 < D < 2	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
South America	Brazil	n.a.	I_MAPE_MAP	D	I_MAP= 0.004 × E_MAP^-0.92	0.04 < E_MAP < 0.4	n.a.	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
South America	Brazil	n.a.	E_MAP	A	E_MAP > 0.12	n.a.	Independently of antecedent rainfall	Guidicini G, Iwasa OY (1977) Tentative correlation between rainfall and landslides in a humid tropical environment. Bulletin of the International Association of Engineering Geology 16: 13-20	Graphic
South America	Brazil	n.a.	E_MAP	A	0.08 < E_MAP < 0.12	n.a.	Depending on antecedent rainfall	Guidicini G, Iwasa OY (1977) Tentative correlation between rainfall and landslides in a humid tropical environment. Bulletin of the International Association of Engineering Geology 16: 13-20	Graphic
South America	Brazil	n.a.	ED	D	E = 22.4×D^0.41	1 < D < 10,000	n.a.	Kanji MA, Massad F, Cruz PT (2003) Debris flows in areas of residual soils: occurrence and characteristics. International Workshop on Occurrence and Mechanisms of Flows in Natural Slopes and Earthfills. Iw-Flows2003, Sorrento, May, 14-16, 2003	Graphic
South America	Brazil	Serra do Mar, Cubatao, Sao Paolo	IE	Sl, E	I = 2603 × E_96h^-0.933	0 < E96h < 500	Human induced failures	Tatizana C, Ogura M, Rocha M, Cerri LES (1987) Analise de correlacao entre chuvas e escorregamentos, Serra do Mar, Municipio de Cubatao. Proceedings 5th Congress Brasiler, Geol Eng San Paolo: 225–236	Graphic
Worldwide	n.a.	n.a.	I_MAPD	Sh, D	I_MAP = 0.0005×D^-0.13	48 < D < 1000	(Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	I_MAPD	Sh, D	I_MAP = 0.0017×D^-0.13	0.1 < D < 48	(Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	I_MAPD	Sh, D	I_MAP = 0.0016×D^-0.40	0.1 < D < 1000	n.a.	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	ID	Sh, D	I = 8.31×D^-0.64	0.1 < D < 48	Mountain climates (Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	ID	Sh, D	I = 8.70×D^-0.66	0.1 < D < 1000	Mountain climates	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	ID	Sh, D	I = 6.25×D^-0.11	0.1 < D < 48	Warm humid subtropical climates (Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	ID	Sh, D	I = 6.68×D^-0.52	0.1 < D < 1000	Warm humid subtropical climates	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	ID	Sh, D	I = 3.55×D^-0.40	0.1 < D < 48	Mediterranean cool climates (Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	ID	Sh, D	I = 3.57×D^-0.41	0.1 < D < 1000	Mediterranean cool climates	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	ID	Sh, D	I = 5.35×D^-0.44	0.1 < D < 48	Mediterranean warm climates (Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	ID	Sh, D	I = 4.81×D^-0.49	0.1 < D < 1000	Mediterranean warm climates	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	ID	Sh, D	I = 22.26×D^-0.90	0.1 < D < 48	Mild marine west coast climates (Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	ID	Sh, D	I = 16.43×D^-0.98	0.1 < D < 1000	Mild marine west coast climates	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	ID	Sh, D	I = 10.30×D^-0.35	0.1 < D < 48	Humid subtropical east coast climates (Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	ID	Sh, D	I = 6.90×D^-0.58	0.1 < D < 1000	Humid subtropical east coast climates	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	ID	Sh, D	I = 0.48×D^-0.11	48 < D < 1000	(Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	ID	Sh, D	I = 2.28×D^-0.20	0.1 < D < 48	(Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	ID	Sh, D	I = 2.20×D^-0.44	0.1 < D < 1000		Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	ID	A	I = 14.82×D^-0.39	0.167 < D < 500	n.a.	Caine N (1980) The rainfall intensity-duration control of shallow landslides and debris flows. Geografiska Annaler Series A-Physical Geography 62: 23–27	Graphic
Worldwide	n.a.	n.a.	ED	A	E = 14.82 × D^0.61	0.167 < D < 500	n.a.	Caine N (1980) The rainfall intensity-duration control of shallow landslides and debris flows. Geografiska Annaler Series A-Physical Geography 62: 23-27	Graphic
Worldwide	n.a.	n.a.	ED	D	E = 4.93 × D^0.504	0.1 < D < 100	n.a.	Innes JL (1983) Debris flows. Progress in Physical Geography 7: 469-501	Graphic
Worldwide	n.a.	n.a.	ID	D	I = 30.53 ×D^-0.57	0.5 < D < 12	Lower envelope	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
Worldwide	n.a.	n.a.	I_MAPE_MAP	D	I_MAP= 0.003 × E_MAP^-0.74	0.03 < E_MAP < 0.4	Lower envelope	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
Worldwide	n.a.	n.a.	ID	S	I = 10×D^-0.77	0.1 < D < 1000	n.a.	Clarizia M, Gullà G, Sorbino G (1996) Sui meccanismi di innesco dei soil slip. International Conference "Prevention of hydrogeological hazards: the role of scientific research" 1: 585-597	Graphic
Worldwide	n.a.	n.a.	ID	Sh	I=0.48+7.2×D^-1.00	0.1 < D < 1000	n.a.	Crosta GB, Frattini P (2001) Rainfall thresholds for triggering soil slips and debris flow. In: Mediterranean Storms (Mugnai A, Guzzetti F, Roth G, eds), Proceedings of the 2nd EGS Plinius Conference on Mediterranean Storms. Siena, Italy, 463-487	Graphic
Worldwide	n.a.	n.a.	ID	D	I = 7.00×D^-0.60	0.1 < D < 3	For burnt areas	Cannon SH, Gartner JE (2005) Wildfire-related debris flow from a hazards perspective. In: Debris flow Hazards and Related Phenomena (Jakob M, Hungr O, eds). Springer Berlin Heidelberg, 363-385	Graphic
Worldwide	n.a.	n.a.	I_MAPD	D	I_MAP = 0.02×D^-0.65	0.5 < D < 12	Lower envelope	Jibson RW (1989) Debris flow in southern Porto Rico. Geological Society of America, Special Paper 236, 29–55	Graphic
Worldwide	n.a.	n.a.	I_RDND	Sh, D	I_RDN = 0.06×D^-0.12	48 < D < 1000	(Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	I_RDND	Sh, D	I_RDN = 0.27×D^-0.14	0.1 < D < 48	(Threshold obtained from probability estimates of rainfall data)	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic
Worldwide	n.a.	n.a.	I_RDND	Sh, D	I_RDN = 0.25×D^-0.39	0.1 < D < 1000	n.a.	Guzzetti F, Peruccacci S, Rossi M, Stark CP (2008) The rainfall intensity-duration control of shallow landslides and debris flows: an update. Landslides 5: 3-17	Graphic