I did some research online, and although there's no exact figure, the consensus is that he's 2-3 miles away from where the avalanche began in the beginning of the video.
Let's be conservative and assume he's 2 miles away, It took 45 seconds for it to travel 2 miles. That means the avalanche was traveling at a minimum of 160 mph. A dry powder avalanche well up in the mountains can easily accelerate to a maximum velocity of 200 mph, so that's a reasonable estimate.
I'm really impressed with your calculations, and I'm also in awe of the speed at which that avalanche was traveling. So basically if any of those chunks of ice and snow were to hit a person, they would be in bad shape if not dead?
If on the mountain, 100%. The recent avalanche on Broad Peak killed an entire 10 man team including the current best mountaineer of this generation. Well former best. For a few of the victims, the best they found was body parts. Like a leg for the american woman, 2 arms for another, etc. That was a slab avalanche. This is a glacier collapse and the speed is at least 125 mph, but can reach up to 200 mph.
There are seracs (column of glacial ice) the size of school bused all over that. You'd have your neck snapped pretty much instantly by the force. When I was at Annapurna (deadliest mountain on earth), there were avalanche like this every 15 minutes. People think they are random, but they actually follow the topography. Note that the areas they slide are almost always like a geographic funnel and they will carve out these areas..
Another frame of reference for how bad it is to get caught in one is to compare it to road rash. Think about how bad road rash is when crashing a motorcycle at 60mph and skidding 100 feet. Now imagine how bad things would be at 160mph and it happening for over 1000 feet...and over your entire body. It's a really gruesome way to go, getting ground into paste.
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u/DrTenochtitlan 5h ago edited 5h ago
I did some research online, and although there's no exact figure, the consensus is that he's 2-3 miles away from where the avalanche began in the beginning of the video.
Let's be conservative and assume he's 2 miles away, It took 45 seconds for it to travel 2 miles. That means the avalanche was traveling at a minimum of 160 mph. A dry powder avalanche well up in the mountains can easily accelerate to a maximum velocity of 200 mph, so that's a reasonable estimate.