What should I do in an avalanche?

Let's talk about avalanches first:

On the snowy hillside, when the cohesion inside the snow can't resist the gravitational pull it receives, it will slide down, causing a large number of snow bodies to collapse. People call this natural phenomenon an avalanche. Some places call it "avalanche", "snow quicksand" or "pushing mountain snow" Avalanches usually start from the upper part of a quiet, snow-covered hillside.

Avalanches are a serious disaster in all high mountain areas.

Soft snowflakes fall.

The snow falling on the leeward slope is not as dense as the snow at the foot of the mountain. There will be a gap behind the slope. It can give people a hard and safe feeling, but the slightest disturbance or movement like rifle shooting can make snowflakes collapse.

Solid snowflakes fall off.

The snowflake in this case has a deceptive solid surface-sometimes walking on it will produce a rumbling sound. It is often caused by strong winds and cooling. The actions of climbers and skiers are like a trigger, which can make the whole snow block or a lot of dangerous ice fall off.

Aerial avalanche

In a cold and dry environment, continuous new snow falls on the existing solid ice, which may cause snowflakes to fall off. These powdery snowflakes fall at a speed of 90 meters per second. Cover your mouth and nose. There's still a chance to survive. Inhaling a lot of snow after being submerged will lead to death.

Wet avalanche

It is more common when ice and snow melt. In winter or spring, the temperature will continue to rise rapidly after snowing, making it difficult for the new wet snow layer to be easily adsorbed on the original low-density ice and snow. Its descent speed is slower than the avalanche in the air, bringing up trees and rocks along the way and producing more snow gravel. When it stops, it will solidify almost immediately and it is difficult to rescue.

In addition, first aid measures:

Lie flat, move on the bottom of the avalanche surface in a crawling posture, throw away packages, sleds, canes or other encumbrances, cover your nose and mouth to avoid swallowing snow. Try to build a big cave around you when you are resting. Try to reach the surface before the snow solidifies. Throw away the toolbox you can't give up-it will prevent you from being dug out. Save your strength and shout when you hear someone coming.

When you are buried in the snow, calm down, let the saliva flow out to judge up and down, and then dig hard-if you can still move.