Add Yahoo as a preferred source to see more of our stories on Google. A mysterious, highly active undersea volcano near California could erupt later this year. What scientists expect A mysterious and ...

Smoke billows from the mouth of Mt. Shasta like a thunderous cough. Within moments, clear skies turn gray, and the sun vanishes behind thick, shifting layers of volcanic gas and ash. Visitors snap ...

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 ...

Southern California has many treasures, but believe it or not, nothing like this hidden gem. When most of us think of volcanoes, we think of molten lava spewing up from the earth and melting ...

A global early-warning system strives to keep aircraft safe from volcanic eruptions. Mark Piesing A small aircraft flies over the Bardarbunga volcano as it spews lava and ash in southeast Iceland. The ...

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 ...

Imagine if we told you there is a massive volcano off the coast of California and that volcano is expected to erupt sometime this year. Are we in danger? And what could it mean for sea life? L.A.

LOS ANGELES — 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 ...