Article
Article
Landslide
Article By:
Nieto, Alberto S. University of Illinois, Urbana, Illinois.
Last reviewed:November 2019
DOI:https://doi.org/10.1036/1097-8542.370200
The perceptible downward sliding, falling, or flowing of masses of soil, rock, and debris (mixtures of soil and weathered rock fragments). Landslides range in size from a few cubic yards to over 3.5 × 109 ft3 (1 × 109 m3), their velocities range from an inch or so per day to over 300 ft/s (100 m/s), and their displacements may be about an inch to several miles. See also: Mass wasting
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