An avalanche is a rapid flow of snow down a hill or mountainside. Although avalanches can occur on any slope given the right conditions, certain times of the year and certain locations are naturally more dangerous than others.
Causes of Avalanches
Avalanches can be caused by many different things. Some of them are natural. For example, new snow or rain can cause accumulated snow suddenly to dislodge and cascade down the side of a mountain. Earthquakes and the natural movements of animals have also been known to cause avalanches.