12 articles
1970 Huascarán avalanche
The 1970 Huascarán avalanche, triggered by the Ancash earthquake on 31 May 1970, buried the Peruvian city of Yungay and killed more than 18,000 people.
2017 Mocoa landslide
The 2017 Mocoa landslide (Avalancha de Mocoa) was a rainfall-triggered debris flow that struck Mocoa, capital of Putumayo, Colombia, on 31 March 2017, killing 333 people.
2017 Sierra Leone mudslides
The 2017 Sierra Leone mudslides were a landslide and flood disaster in the Regent area of Freetown on August 14, 2017, killing an estimated 1,100 people.
Debris flow
A debris flow, also called a mudslide, mudflow, or lahar, is a fast-moving landslide in which soil, rock, and water flow downslope as a slurry, often triggered by intense rainfall.
Earthflow
An earthflow is a type of landslide in which fine-grained silt and clay move downslope as a viscous flowing mass, slower and drier than a mudflow.
Las Colinas landslide
The Las Colinas landslide was a fast-moving flow-slide of volcanic soil triggered by the January 13, 2001 El Salvador earthquake, burying a Santa Tecla neighborhood and killing several hundred people.
Rock avalanche
A rock avalanche is a very rapid downslope flow of fragmented rock from a disintegrating rockfall or rockslide, often exceeding 100 km/h over a million cubic meters.
Rockfall
A rockfall is a type of landslide in which rocks detach from a steep slope or cliff and descend mainly by free-fall, bouncing, and rolling at very rapid speeds.
Slide
Slide (geography): a landslide mechanism in which rock, debris, or earth moves downslope as a coherent mass along a distinct failure surface; rotational or translational; one of five slope-movement modes; GeoNames code SLID names the resulting landform.
Slump
A slump is a type of landslide in which a coherent mass of soil or rock moves downslope by rotational sliding along a curved, spoon-shaped failure surface.
Submarine landslide
A submarine landslide is the downslope movement of sediment or rock on the seafloor under gravity, occurring on slopes as gentle as 1 degree, destroying seabed infrastructure, and generating tsunamis.
Threshold slope
A threshold slope is a hillslope steepened to the limiting angle of stability, where further uplift or river incision is absorbed by landsliding rather than steepening.