The classification of landslides by the BGS follows the scheme based on Varnes (1978) and Cruden & Varnes(1996). The scheme terminology is also that suggested by the Unesco Working Party on the 'World Landslide Inventory' (WP/WLI 1990, 1993).
The main classification criteria are:
Combining movement and material type terms enables an appropriately descriptive landslide name to be formulated. Naming can become more detailed with the addition of other descriptive details related to activity state, water content , rate of movement, etc., if known (e.g. active, complex, extremely rapid, dry rock fall-debris flow).
Only a small selection of the wide spectrum of landslide types that may develop in nature are shown here.
Varnes, DJ. 1978. Slope movement types and processes. In Special
report 176: Landslides: Analysis and Control, Transportation Research
Board, Washington, D.C.
Cruden, DM & Varnes, DJ. 1996. Landslide types and processes. In Special Report 247: Landslides: Investigation and Mitigation, Transportation Research Board, Washington D.C..
WP/WLI. 1990. A suggested method for reporting a landslide. Bulletin of the International Association of Engineering Geology, No. 41.
WP/WLI. 1993. A suggested method for describing the activity of a landslide. Bulletin of the International Association of Engineering Geology, No. 47.