* Rockfall: This is the freefall of rock fragments from a steep cliff face.
* Rockslide: This involves a large mass of rock moving downslope along a defined plane.
* Debris Flow: This is a rapid flow of a mixture of mud, rock, and water, often triggered by heavy rainfall.
* Slump: This is a rotational movement of a mass of soil or rock, often creating a curved scar on the slope.
So, the specific term depends on the nature of the movement and the material involved.