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landslidesclick to hear

Ground movements that vary in speed, depending on the slope’s gradient, the nature of the soil and what triggers it.
landslides mudflow creep earthflow rockslide

mudflow click to hear

Sudden flow of mud along a slope; it occurs when torrential rains quickly saturate the soil.

creep click to hear

Very slow, imperceptible movement of earth along a slope, caused mainly by alternating wet and dry periods.

earthflow click to hear

The upper section of a sloping water-soaked terrain that collapses, forming a tongue of land the length of the slope.

rockslide click to hear

Rock mass that suddenly detaches and falls from the top of a steep slope; it is caused by freeze-thaw action or by gravity.