What are the main causes of rainfall-induced landslides?

Rainfall-induced landslides occur when excessive rainfall saturates the soil and weakens the ground, resulting in the movement of mass down a slope. The main causes of such landslides can be attributed to several factors. Firstly, the intensity and duration of rainfall play a significant role. Heavy and prolonged rainfall can infiltrate the soil rapidly, leading to increased pore pressure and reduced soil strength, subsequently triggering landslides. Secondly, the geological characteristics of an area, such as the type of soil and rock formations, can determine the susceptibility to landslides. Areas with loose or weakly consolidated soils are more prone to landslides, particularly when combined with intense rainfall. Additionally, the slope angle and land use practices, such as deforestation or improper drainage systems, can aggravate the risk of rainfall-induced landslides. Overall, an understanding of these factors is vital for predicting and mitigating the impact of rainfall-induced landslides on vulnerable areas.

This mind map was published on 11 February 2024 and has been viewed 47 times.