Earthflow

An earthflow is a type of slow-moving landslide where a large amount of loose, water-saturated soil and sediment gradually flows downhill. It typically occurs on slopes with soft, unconsolidated material after heavy rain or groundwater increases pore water pressure, reducing friction and causing the earth to move. Unlike quick landslides, earthflows happen over days or months and can reshape landscapes, sometimes leaving behind distinct crescent-shaped heaps called "head" and "toe." They are common in hilly or mountainous regions with permeable soils, and understanding them is important for land use planning and hazard mitigation.