An undersea volcano erupted near the island of Tonga, prompting a tsunami advisory for Hawaii, Alaska and the US Pacific Coast.

An undersea volcano erupted near the island of Tonga, prompting a tsunami advisory for Hawaii and along the West Coast.

A tsunami advisory has been issued for the entire west coast of the U.S. after an undersea volcano erupted in spectacular fashion near the Pacific nation of Tonga.

An undersea volcano erupted in near the Pacific nation of Tonga, sending tsunami waves crashing across the San Francisco Bay Area coast.

The Hunga Tonga volcano has erupted explosively again, causing widespread concern and triggering a tsunami across the Pacific region. This video provides the latest update on the volcanic activity ...

An undersea volcano erupted near the island nation of Tonga, prompting a tsunami advisory for California, Oregon, Washington and Hawaii.