Nearly a mile deep, the Pacific Ocean volcano known as Axial Seamount is drawing increasing scrutiny from scientists who only ...

Jessica Ball with the California Volcano Observatory joined the show to discuss the Mt. St. Helens eruption 45 years ago and if there's been any recent activity at California's volcanoes.

The eruption of Italy’s Mount Etna reminded the world how sudden and unpredictable volcanoes can be. Check out the most ...

California has seven active volcanoes, each with a unique eruption history, categorized by type and threat level. The USGS monitors these volcanoes, providing information to authorities and the ...

The 1980 Mount St. Helens eruption began with a steady series of earthquakes in March. By April it began spewing smoke, massive landslides on the north side of the mountain began, as a massive bulge a ...