Sunday 05 May 2024


Threshold typeThreshold codeDescription
EECumulative event rainfall (E) 



Thresholds sorted by Continent

ContinentNationZoneThreshold typeLandslide codeEquationRangeNotesReferenceImage
AfricaSouth AfricaNatal Group, Durban Area, KwaZulu-NatalEAE(2h) > 100-150 mmn.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): 1029–1038Graphic
AsiaSri Lankan.a.EAE(3d) > 200 mmn.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: 887–890Graphic
EuropeItalyn.a.EAE(1-3d) > 100 mmn.a.For marly, arenaceous rocksCanuti P, Focardi P, Garzonio CA (1985) Correlation between rainfall and landslides. Bull Int Assoc Eng Geol 32: 49-54Graphic
EuropeSpainEastern Pyrenees MountainsEAE(24-48h) > 300 mmn.a.Widespread landslidingCorominas J, Moya J (1999) Reconstructing recent landslide activity in relation to rainfall in the Llobregat River basin, Eastern Pyrences, Spain. Geomorphology 30: 79-93Graphic
EuropeSpainEastern Pyrenees MountainsEAE(24-36h) > 180-190 mmn.a.Slight shallow landslidingCorominas J, Moya J (1999) Reconstructing recent landslide activity in relation to rainfall in the Llobregat River basin, Eastern Pyrences, Spain. Geomorphology 30: 79-93Graphic
North AmericaUSAContra Costa CountyEShE > 177.8 mmn.a.Abundant landslidesNilsen 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 1388Graphic
North AmericaUSASan Benito CountyEAE > 250 mmn.a.n.a.Oberste-lehn D (1976) Slope stability of the Lomerias Muertas area, San Benito County, California. PhD, Stanford University, CaliforniaGraphic
North AmericaUSASan Francisco Bay AreaEShE > 254 mmn.a.Greater propensity for landslidesMark and Newman cited in Cannon SH, Ellen SD (1985) Rainfall conditions for abundant debris avalanches, San Francisco Bay region, California. Calif Geol 38: 267–272Graphic




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