Stay up to date with notifications from The Independent Notifications can be managed in browser preferences. All News Sport Culture Lifestyle The Tracy Arm Fjord in southeastern Alaska (U.S. Geological Survey) A colossal tsunami, measuring 1,578 feet (481 metres) and the second-highest ever recorded and about the size of New York’s Empire State Building, struck Tracy Arm Fjord in southeastern Alaska on 10 August 2025. The powerful wave was caused by a landslide, which scientists have directly attributed to global warming, as retreating glaciers left the mountain's rock face unsupported. Despite its immense power, which violently stripped vegetation from the fjord's steep rock walls, no injuries were reported as the event occurred at 5.30 am when no vessels were present. Researchers reconstructed the event using aerial photos, satellite and seismic data, and fieldwork, as there were no direct recordings of the tsunami.…