What is an avalanche? Detailed answer

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What is an avalanche? Detailed answer

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What is an avalanche?

An avalanche is a descending mass of snow, ice, or mud with rocks. An avalanche of mud and rocks is a landslide that can occur even in snowless areas. A steep mountain slope or cliff is saturated with water or weakened in some other way. The ground can no longer be held on such a steep slope, and a collapse begins.

Such collapses or avalanches most often occur in the spring, when melting snow and ice soak the ground underneath. They can also occur when a river overflows its banks, or where people are building a road or excavating at the foot of a steep mountainside. Such landslides often cover mountain valleys, and thus large lakes are obtained.

Snow avalanches happen when snow can no longer hold onto a mountainside. Old, packed, crusted snow often sticks even on very steep slopes, but fresh, loose, loose snow often slips easily even from fairly sloping slopes. When a small snow avalanche begins, it often rips off large masses of snow that are in its path from its place, and continues on its way, increasing in size and gaining destructive power.

In those places where the snow lies so that it barely keeps from sliding, even the sound of a voice can be enough to move huge masses of snow from their place and start an avalanche. This is because sound vibrates the air, and these vibrations cause the snow to move.

In the Alps, when groups of climbers are climbing dangerous slopes, guides often insist that everyone remain completely silent, as vibrations from the sound of voices can cause an avalanche.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

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