Landslide

The sliding down of a slope of a mass of rock, rubble, or earth is known as a landslide. Landslides are a sort of "mass wasting," which refers to any downward movement of soil or rock caused by gravity alone. The five slope-moving processes known as "landslides" are falls, topples, slides, spreads, and flows.

By the type of geologic material, these are further separated (bedrock, debris, or earth). Common landslide types include debris flows, often known as mudflows or mudslides, and rock falls.
Every landslide has a number of contributing factors. When forces operating downslope—primarily those brought on by gravity—exceed the stability of the earth components that make up the slope, slope movement results.


Both factors that lead to low or reduced strength and factors that amplify the impacts of downslope forces are causes. Rainfall, snowmelt, changes in water level, stream erosion, changes in ground water, earthquakes, volcanic activity, disturbance from human activity, or any combination of these causes might start a landslide on a slope that was already about to move.
Landslides can also occur underwater as a result of earthquake activity and other circumstances. Submarine landslides are what these landslides are known as. Sometimes underwater landslides result in tsunamis that harm coastal regions.