place

Tracy Arm

fjord in Alaska

Earth & Nature · 20 Oct 2026Alaska landslide tsunami climbed 1,580 feet, study finds

A landslide-triggered tsunami in Alaska’s Tracy Arm sent water and debris 1,580 feet up a mountainside in August 2025, making it the second-highest tsunami in recorded history, according to researchers who say the event showed warning signs that could help protect ships and coastal communities.