Land slide or mudslide
deposition or erosion
erosion or mass movement
creep
When it gets loosened from the surface of the hill.
landslide
deposition or erosion
Mass movement (also known as mass wasting) can be any of four types of motions :creep (objects lean downhill over many years)slump (rock and soil slip down a hill in one large mass)slides (landslides : rock and soil slide downhill)flows (mudslides and mudflows: rock and soil mixed with water slides downhill)Under some definitions, there are two other types, which do not involve "flows" of material. They are :topples (rock pivots off a slope)falls (rock separates and falls without flowing)
eroison
creep
erosion or mass movement
When it gets loosened from the surface of the hill.
Landslide or landslip.
Slump
landslide
Landslide or landslip.
It can be called a landslide.
Usually by erosion, although weathered rocks can split off to trigger a slide. A landslide is the downhill motion of loose rock and soil, sometimes entire layers of a mountainside.