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Related to Debris avalanche: Rock avalanche
A downward slope movement of a potentially lethal mixture of water, rocks, and mud, triggered by earthquakes, volcanoes, or weather events
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Debris avalanches in the Volcanic Complex Sillapaca: A tool for sustainable land management
In addition, about %60, %35 and %15 of all risky zones are involved in Debris Avalanche landslide, Earth Flow landslide and Debris Flow, respectively.
In the stratigraphic section next to the right margin of the Quebrada La Hedionda (Figure 21), we can observe from base to top: 1) a lower debris avalanche deposits (at the road level, see the truck for scale); 2) in the middle a sequence of pyroclastic density currents (the layered part of the outcrop); and 3) an upper debris-avalanche deposit.
As shown, the new Yungay settlement area is actually expending on deposits of the 1970 debris avalanche. This tendency is partially driven by governmental actors, which allow the colonisation and even construct schools in the mentioned risk zone.