Danger from Above

❄️Unveiling the Risks of Avalanches (with animations)

Hydrau
5 min readMay 9, 2023

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% of Photo by Jean Woloszczyk on Unsplash

Avalanches can reach 320 km/h (200miles/h)

January 11, 1954, in Blons, Austria

Blons is a little village in West Austria. On a winter morning when a snowstorm was coming down for a few hours, a first avalanche strike the village at 10 a.m.

As one survivor, Robert Dobner, says, it was the beginning of a day he would describe as “a dark Monday, so full of snow”.

The power of the avalanche buried 82 and killed 34 people. A few hours later, as rescuers were helping the survivors, a second avalanche hit the village at 7 p.m.

125 people died in this event, and 1/3 of the village was destroyed. This is one of the most deadly avalanches in Europe.

But did you know that today, 90% of the victims triggered the avalanche that killed them.

How it happened

Slab Avalanches occur when the upper layer slides over a lower layer.

Example of of layer sliding
Slab Avalanche process

Every time snow falls on a slope, it forms layers on top of the previous ones. Each of…

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Hydrau

Helping you understand, react to, and protect against natural (hazards) disasters 📘 Author of The Essential Guide Through Nature's Fury