Twenty years after the deadliest wave in recorded history, most oceans have warning systems and communities have learned how best to escape the danger.

Onlookers gaze out to sea at the Sutro Baths overlook in San Francisco, Calif., on Thursday, Dec. 5, 2025. A tsunami warning ...

Experience the magic of Hawaii's landmarks. From stunning beaches to towering mountains, discover the unique beauty of this ...

Your essential guide to understanding tsunamis, including how they're caused, their devastating effects, and how early ...

Scientists working alongside the U.S. Coast Guard have discovered a 1,640-foot-tall (500 meters) structure that looks like an underwater volcano off the coast of Alaska. The structure may be ...

Here’s how it works. Scientists working alongside the U.S. Coast Guard have discovered a 1,640-foot-tall (500 meters) structure that looks like an underwater volcano off the coast of Alaska.

Scientists aboard the Coast Guard Cutter Healy have discovered a large underwater volcano approximately 1,600 meters beneath the surface off the coast of Alaska. The team, including experts from ...

(CNN) – Scientists have discovered an underwater volcano-like feature during Coast Guard-assisted operations off of Alaska. The U.S. Coast Guard cutter called Healy just finished the first two ...