- 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.
- Scientists, including Dan Shugar, warned that such events are likely to recur, noting that pre-landslide seismic activity could offer potential for future warning systems.
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