Carved over millennia by the pressure and motion of glacial ice, the valley walls cradling the Tracy Arm fjord in southeast Alaska continue to be reshaped. In summer 2025, following the rapid retreat of South Sawyer Glacier, a large landslide sent rock careening into the fjord, altering the wider landscape in a matter of minutes.

The world’s second-tallest tsunami wave on record tore through the remote Tracy Arm fjord in Alaska last August, leaving immense destruction in its wake.

A glacier that had held a mountainside steady for millennia retreated just enough to expose unstable rock, and on August 10, 2025, that rock fell into Alaska’s Tracy Arm Fjord, creating a tsunami 481 meters tall.

Last summer’s upheaval in Tracy Arm is a geological hazard that could happen to other northern landscapes, a new study warns

Tsunami alerts lit up Siri Zama's phone on Tuesday. The 28-year-old high school teacher in Kapolei, Hawaii, fled inland. "It was raining, and the clouds got real dark. It was just a little scary. I was a little worried because everyone from here was ...

Japanese authorities issued tsunami alerts after a magnitude 7.7 earthquake struck the country's north on April 20, 2026, but footage circulating online showing a neighbourhood engulfed by massive waves is not linked to the latest jolt.

Researchers have now determined that the tsunami on August 10, 2025, was the second-highest ever recorded, with a wave reaching up to 481 metres (1,578 feet) tall – higher than

By chance a tour boat avoided a deadly tsunami set off by the retreat of Alaska's coastal glaciers. Scientists are working to spot landslides like the one that caused the massive wave to warn people i