Well, it looks like slo-mo, but in reality this avalanche is just speed-challenged. It roared down toward a village in Passeier Valley (Italy’s South Tyrol region) at such a stately rate that all 25 locals were able to evacuate in time.
One of them subsequently took this footage of the avalanche from a vantage point on the opposite slope, and it’s fascinating. The relentless push of the snow reminds me of a tsunami, where the danger isn’t so much from the height of the wave as it is from the power behind it. This thing goes on, and on, and on, snapping large trees along the way and making one very glad the villagers were watching from a safe distance.
Also in the South Tyrol was this rockfall, which sent ginormous boulders through a vineyard and house. The video is of the aftermath, which is eye-opening. One suspects these rocks, unlike the avalanche, did not fall in slow motion.
(Second video via TYWKIWDBI.)