1. avalanche of earth and rocks
Wikipedia definition
2. Debris flowDebris flows are fast moving, liquefied landslides of mixed and unconsolidated water and debris that look like flowing concrete. They are defined by their non-newtonian flow dynamics, and behave as Bingham plastics. This characteristic can lead to the formation of levees at the margins of unconstrained debris flows as the margins of the flow freeze. They are differentiated from mudflows by their coarser and more poorly sorted sediment load.
Read “Debris flow” on English Wikipedia
Read “土石流” on Japanese Wikipedia
Read “Debris flow” on DBpedia


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