Avalanches are very dangerous and unpredictable. Avalanches may happen after or during blizzards. Weather causes snow to become unstable. Avalanches are caused in four ways. Avalanches are very dangerous. They can severely injure people and property. They even kill people and animals.
Every year avalanches kill an average 130 people. Those killed are mostly are BC (Back Country) skiers. Being prepared is always important.
One way avalanches are created is by skiers calling out loudly to other people or skiers. Another way is when mining explosions vibrate the snow enough to break it loose and cause an avalanche. A third way avalanches are started is by winds that pick snow up and shove it off the cliffs. Finally, earthquakes shift snow around and crumble it down mountains.