Another example of soilfall is produced by ocean waves undercutting cliff faces. This type of undercutting can also result in slumping. Rotational Movement Translational Movement Translational Movement Imagine yourself sliding down a slide at a playground. The sliding of material along a curved surface called a rotational slide or slump. A common cause of slumping is erosion at the base of a slope.
Slope failure occurs.
Flows can be very slow or can be exceedingly fast. Other types of flows are all quite similar. Generally the size of individual particles and the amount of water present is the distinguishing criteria. Frequently, the same event is referred to by more than one name. Visit the U.S. Geological Survey Geological Hazards site and peruse the various types of landslides and their effects on human lives.