Entire 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! VoicesA rumble echoed around the world for nine days. Here’s what caused it. The Washington PostWe Now Know Why Earth Vibrated for Nine Days in 2023 The Wall Street Journal650-Foot High Megatsunami in Greenland Sends Seismic Waves Worldwide SciTechDaily