Alaska Landslide Triggers Second-Largest Recorded Tsunami, Raising Climate Concerns
A massive landslide in Tracy Arm fjord, Alaska, on August 10, 2025, caused a tsunami with waves reaching 481 meters, the second-largest ever recorded. The landslide, involving 64 million cubic meters of rock, was triggered by a retreating glacier destabilizing the terrain. The tsunami created a seiche, a reflecting wave that persisted for 36 hours. The event occurred in a remote area, sparing nearby cruise ships from disaster. Researchers reconstructed the event using satellite images, seismic data, and computer models, highlighting the role of climate change in increasing the frequency of such events.