雪崩：冰雪岩石的大规模滑落现象

, and other debris that moves rapidly down a mountainside. Avalanches can be triggered by natural causes such as snowfall or earthquakes, or by human activities like skiing. Avalanches are dangerous because they can cause serious injury or death to anyone in their path. Avalanches, also known as snowslides, are sudden mass movements of snow, rock, ice and other debris down a mountainside. They can be caused by natural events such as heavy snowfall or earthquakes, or by human activities like skiing. Avalanches pose a serious threat to those in their path due to the potential for serious injury or death.