A massive landslide in Greenland's Dickson Fjord triggered a mega-tsunami and caused the Earth to vibrate for nine days, a phenomenon linked to climate change. The landslide, which took place in September 2023, involved a 1.2 km-high mountain collapsing into the fjord, sending waves up to 110 meters high. This event generated a unique seismic signal, dubbed an Unidentified Seismic Object (USO), detected worldwide, including as far away as Antarctica. Researchers from University College London reconstructed the event, finding that the water sloshed back and forth in the fjord, sustaining vibrations with a single frequency for an unprecedented duration. Although there was significant damage to a research base, no cruise ships were in the vicinity, preventing potential fatalities. The study highlighted the destructive power of such natural events and their connection to climate issues.