ORMOUS 🌒 on Instagram: "The biggest tsunami ever recorded struck Alaska in 1958 — and surprisingly, it wasn’t triggered by an earthquake, but by a massive rockfall. When millions of cubic meters of rock plunged into Lituya Bay, the impact created a wave so huge it surged 520 meters (1,720 feet) up the fjord walls. That’s taller than the Empire State Building! 🌊 Most tsunamis happen far out at sea and go unnoticed, but some are powerful enough to reshape coastlines and history in a matter of se