Unknown
On Sunday, January 27, 2013
A landslide is a
geological phenomenon which includes different types of ground movement, such
as rock falls, deep failure of slopes and shallow debris flows. We usually also
say that landslide is when a large amount of soil and rocks falls down the side
of hill,cliff, or mountain.
Landslide can occur naturally or because of human’s
action. Natural causes of landslide includes erosion by river, heavy rains and
snowmelt, glacier melting, ocean waves which create over steepened slopes,
earthquake, volcanic eruptions, thunder and lightning, and ground water
pressure. Human cause of landslide includes vibrations from machinery, traffic
and road construction, blasting, mining, and logging
Taken from:
en.wikipedia.org/wiki/Landslide