Landslides composed predominantly of soil, or soil and underlying weathered material, initiated by shear failure along one or more distinct slip faces, and which move down slope for only relatively short distances.
You can insure against this, usually together with cover for subsidence. It is possible to take out a restricted cover for subsidence and landslip caused by flood. Full cover is normally available only after a survey of the premises or area, and also subject to a large deductible. Even then, erosion, heave and settlement/cracking in structures which have been caused by normal earth movements are excluded from such policies.
The movement down the slope of a large mass of soil or rocks from a mountain or cliff. Often occurs after a torrential rain which soaks into the soil making it heavier and more mobile. Earthquakes and the undermining action of the sea are also causative agents.