Every year many people are killed from avalanches.
About half of the buried victims will die if they are not rescued within 30 minutes
Others die due to the severe shock of hitting boulders or trees during the slide
Or are crushed by massive blocks of snow
more than 130 million cubic yards of snow and ice slides down a slope or mountainside.
Ice mass collects large amounts of debris such as rocks and tree stumps
In populated mountain areas, whole villages are crushed
Hundreds of people and animals are buried alive
Power and water supplies are cut off and the roads disappear in only a few minutes.
Formation an avalanche