Cinematic 4K 30p. A real landslide, also known as a landslip or Mudslide, is a form of mass wasting that includes a wide range of ground movements, such as rockfalls, deep failure of slopes, and shallow debris flows. Although the action of gravity is the primary driving force for a landslide to occur, there are other contributing factors affecting the original slope stability. Natural disaster. Typically, pre-conditional factors build up specific sub-surface conditions that make the slope area prone to failure, whereas the actual landslide often requires a trigger before being released.