#Tsunamis

Push nature to its limits, and it can produce unexpected natural disasters—something that medieval societies found out the hard way.

In 2025, a retreating glacier in Alaska caused a landslide into a fjord named Tracy Arm. The landslide triggered a tsunami that swept down the fjord into the ocean.…

A landslide-triggered tsunami stripped vegetation from the shore of the glacial fjord in summer 2025.

Climate change is making landslides and tsunamis more likely in fjord regions such as Alaska's Tracy Arm.

Scientists have mapped how Earth’s deepest mantle is being deformed—and the results point to long-lost tectonic plates buried thousands of kilometers underground.…