A landslide includes a wide range of ground movement.
Landslides are caused when the stability of a slope changes from a stable to an unstable condition. A change in the stability of a slope can be caused by a number of factors, acting together or alone.
Types of landslide include :
- Debris flow - slope material that becomes saturated with water.
- Earth flow - downslope, viscous flows of saturated, fine-grained materials
- Debris avalanche - chaotic movement of rocks soil and debris mixed with water or ice (or both).
- Sturzstrom - Often very large, these slides are unusually mobile, flowing very far over a low angle, flat, or even slightly uphill terrain.
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