What causes earthflows?

Earthflows are primarily caused by the saturation of soil due to heavy rainfall, rapid snowmelt, or poor drainage, which increases the weight and reduces the stability of the soil. This saturation leads to a reduction in friction between soil particles, allowing them to move downhill under the influence of gravity. Additionally, factors such as steep slopes, geological composition, and vegetation loss can further contribute to the occurrence of earthflows. Human activities, like construction and deforestation, can also exacerbate these natural processes.