Question

What are the natural causes of landslides?​

Answer 1

Natural causes of landslides include:

• saturation by rain water infiltration, snow melting, or glaciers melting

• rising of groundwater or increase of pore water pressure (e.g. due to aquifer recharge in rainy seasons, or by rain water infiltration)

• increase of hydrostatic pressure in cracks and fractures

Answer 2

The natural causes of landslides are the level of ground water, hydrostatic pressure, weathering, earthquake, and volcanic eruptions.

Explanation:

• The mass dislocation of land by ground movements like slope failure, falling of rock, mud, and debris flows. However, gravity plays the main role in landslides.
• It occurs when the slope changes its stable form to unstable form by some process either it can be natural or manmade.
• The pressure of pore water due to the rising level of groundwater and increased pressure in cracks may result in landslides.
• Loss of soil nutrients, structures, absence of vertical vegetation, and repeated freezing and thawing also lead to landslides.