Activity beneath the planet was as important as what happened on the surface of Earth, given its role in the planet's workings. A new study noted how Earth recycled its crust as the rifting of ...

Off the coast of British Columbia, nearly a mile beneath the surface, something unexpected is happening. It starts with heat.

The eruption of an underwater volcano off the coast of a Japanese island has led to the creation of a new island. Researchers have been watching the underwater volcano for decades. Located in the ...

A large submarine volcano is likely erupting deep beneath the Pacific Ocean. However, scientists don't know for sure because the Ahyi Seamount is so inaccessible. Located in the U.S. Commonwealth of ...

A mysterious and highly active undersea volcano off the Pacific Coast could erupt by the end of this year, scientists say. Nearly a mile deep and about 700 miles northwest of San Francisco, the ...

Saddle Mountain is a hike that showcases Western Oregon on a grand scale. The tallest peak in the northern Coast Range surveys the Pacific Ocean, Cascade volcanoes and Columbia River — three of the ...