Far beneath the forests and hot springs of the American West, the continent’s largest active volcanic system is rumbling in ...

Yellowstone has erupted three times in the past 2.1 million years, and each event buried large portions of North America ...

WASHINGTON (AP) — Scientists can’t know precisely when a volcano is about to erupt, but they can sometimes pick up telltale signs. That happened two years ago with the world’s largest active volcano.

An "unusually large" ice volcano in Iceland could be about to blow after more than 130 earthquakes hit the region in a five-hour period, experts say. The earthquake swarm began in the northwestern ...

Olympus Mons, a shield volcano on Mars, is the largest volcano in the solar system, measuring approximately 370 miles in diameter and 26 kilometers in height. The formation of Olympus Mons and three ...

A volcano near Alaska’s largest city is showing new signs of unrest, with experts saying the likelihood of an eruption at Mount Spurr in the next few weeks or months has increased. The Alaska Volcano ...

As the Kilauea volcano in Hawaii erupted again last week, lava was captured spinning into the air like a dust devil, creating a "lavanado." Stunning video footage captured by Scott Malis on Feb. 26 ...

Learn more about volcanic activity on Mars and how it may have once provided vital elements to the atmosphere.

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. WASHINGTON (AP) — Scientists can’t know ...

ANCHORAGE, Alaska — A volcano near Alaska's largest city is showing new signs of unrest, with experts saying the likelihood of an eruption at Mount Spurr in the next few weeks or months has increased.