Scientists have solved the mystery of a 650-foot mega-tsunami that made the Earth vibrate for 9 days CNNA rumble echoed around the world for nine days. Here’s what caused it. The Washington PostEntire Earth vibrated for nine days after climate-triggered mega-tsunami The Guardian650-foot tsunami in Greenland fjord made waves that lasted 9 days, scientists find Yahoo! VoicesWe Now Know Why Earth Vibrated for Nine Days in 2023 The Wall Street Journal