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TitleMore comprehensive characterization of landslides: Review and additions
AuthorCruden, D M; Couture, R
SourceGeologically Active: Proceedings of the 11th IAEG Congress; by Williams, A L (ed.); Pinches, G M (ed.); Chin, C Y (ed.); McMorran, T J (ed.); Massey, C I (ed.); 2010 p. 1033-1042
Alt SeriesEarth Sciences Sector, Contribution Series 20090310
Meeting11th IAEG Congress; Auckland; NZ; September 5-10, 2010
Subjectsengineering geology; surficial geology/geomorphology; landslides; landslide deposits; slope deposits; slope failures; slope stability; slope stability analyses
Illustrationsphotographs; diagrams
ProgramNational Guidelines for Natural Hazard Assessment and Mitigation, Public Safety Geoscience
AbstractThe nomenclature established by the Working Party for World Landslide Inventory has become the basis for an emerging consensus on landslide classification. This Working Classification encompasses seven mutually exclusive descriptors of the state of activity of the landslide, seven of the distribution of movements and five to describe the style of activity. The velocity of the movements can be described from an open-ended, seven division scale, ranging from extremely slow to extremely rapid. The material displaced may be rock, debris or earth with a range of four qualitatively-estimated water contents. Then there are five types of landslide, falls, flows, slides, spreads and topples. We suggest additions to the Classification, additional states of activity preceding displacements and inclusion of frozen water in the description of water content. Careful documentation of these additions would lead to more comprehensive landslide characterization and better management of landslide risk.