Mudflow
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- Mudslide redirects here, it is also the name of a cocktail.
A mudflow or mudslide is the most rapid (up to 80 km/h, or 50 mph) and fluid type of downhill mass wasting. It is a rapid movement of a large mass of mud formed from loose earth and water. Similar terms are mudslide (not very liquid), mud stream, debris flow (e.g. in high mountains), jökulhlaup, and lahar (from volcanoes, see also pyroclastic flow).
However, these terms show a broad variety
- in water content (from loamy mud, to almost liquid, and even steam),
- in material (wet soil, sandy sediments and/or silt, dirt, rock, debris, volcanic ash, small plants, and even trees)
- and in length, total mass, and velocity.
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