Simon Trautman: What causes avalanches, and can you survive them?

What causes avalanches, and can you survive them?

Avalanches are the rapid descent of snow, ice, rock, or a combination of these down a slope. They can be destructive natural disasters and personal tragedies: killing an average of 27 people annually in the US. These alpine nightmares don’t just awaken out of nowhere; they need three specific conditions. So, what causes an avalanche? And is there any way to survive? Simon Trautman investigates. [Directed by Denys Spolitak, narrated by Bethany Cutmore-Scott, music by Stephen LaRosa, Wonder Boy Audio].

Avalanches can strike with terrifying force, burying victims beneath tons of snow in seconds. Each year, an average of 27 people die in the United States alone, as these disasters turn recreation into tragedy. Avalanches require a perfect storm of slope, unstable snow layers, and a triggering event, whether natural or human-made. While experts can reduce risks in managed areas, in the wild backcountry, survival often comes down to knowledge, preparation, and luck.

Avalanche Survival Hinges On Science, Speed, And Split-Second Choices

Avalanches, which kill an average of 27 people each year in the United States, are triggered by a precise combination of slope, snow layers, and an initiating event. Even highly skilled skiers can be caught off guard, as in the 2012 Cascade Mountains tragedy where only quick thinking and specialized gear saved a life. Avalanche danger can be reduced but never fully eliminated, especially in wild, unmonitored backcountry terrain. Prevention, preparation, and respect for nature’s power remain the best defense.