Alaska Landslide Triggers One of the Largest Tsunamis Ever Recorded, Study Reveals
A recent study has revealed that a massive landslide in Alaska's Tracy Arm fjord on August 10, 2025, triggered a megatsunami, identified as the second-highest tsunami wave ever recorded. The landslide, which occurred above a retreating glacier, sent 64 million cubic meters of debris into the fjord, generating a wave that reached 1,578 feet high. This event was amplified by the narrow fjord, which funneled the water upwards. The study, published in Science, highlights the lack of warning signs before the landslide, although microseismic activity was noted in the days leading up to the event. The tsunami's impact was mitigated by its timing, occurring early in the morning before tourists typically visit the area.