Alaska Landslide Triggers Second-Highest Recorded Megatsunami, Study Reveals
A new study has revealed that a massive landslide in Alaska on August 10, 2025, triggered a megatsunami, identified as the second-highest tsunami wave ever recorded. The landslide occurred in Alaska's Tracy Arm fjord, where debris from a mountainside above a glacier fell into the water, creating a wave over 1,500 feet high. This event, driven by the landslide rather than an earthquake, generated seismic signals detected worldwide. The study, published in Science, provides insights into the conditions leading to the landslide and the resulting megatsunami, highlighting the role of the fjord's geography in amplifying the wave.