A massive landslide in Alaska's Tracy Arm fjord in 2025 generated a 500-meter-high tsunami, the second-highest ever recorded. While no casualties occurred due to the early morning timing, the event highlights the growing risk of such disasters in glacier-retreating regions. The study underscores how climate change-induced glacier melt is destabilizing mountain slopes, increasing the likelihood of similar catastrophic events in populated areas.
Background
Landslide-generated tsunamis, while less common than earthquake-triggered ones, can be far more destructive in confined waterways like fjords. The 1958 Lituya Bay megatsunami reached 530 meters, the highest ever recorded.
- Source
- Ars Technica
- Published
- May 10, 2026 at 07:00 PM
- Score
- 8.0 / 10