United States Geological Survey scientists have shared maps that show where ash would fall across the US if a Yellowstone ...

A minor, 3.9-magnitude earthquake struck in the San Francisco Bay Area on Monday, according to the United States Geological ...

The known sequence of Maunaloa’s 1868 events began with an eruptive phase beginning at about dawn March 27 at the summit, lasting a couple of hours. Seismicity escalated thereafter, with Kaʻū ...

The Alaska Volcano Observatory said signs indicated a Mount Spurr eruption was likely, though not certain, in the weeks or ...

The southern Italian city of Naples was struck by a 4.4-magnitude quake early Thursday that caused only minor damage.

Alaska's Mount Spurr, an active volcano near the most populated region in the state, is getting even closer to an eruption, ...

Numerous small, shallow earthquakes continue to rumble under Alaska's Mount Spurr, prompting fears of an imminent eruption.

The largest active volcano in Washington state has been rocked by a series of earthquakes, putting experts on high alert. Mount Adams is a 12,000-foot-tall stratovolcano located in south-central ...