Tiny crystals suggest extinct volcanoes could still grow underground, a finding that could reshape how scientists assess ...

The last eruption of Greece’s Methana volcano was around 250 B.C.E. Ever since that event, which was recorded by the Greek ...

One of the most explosive volcanoes in U.S. history began its eruption with a trickle, not a blast. Mount St. Helens' gas-laden magma oozed into the cone before the mountain finally erupted in 1980.

Evidence suggests that Venus is still volcanically active, and new data about a big eruption in Hawaii a few years ago could ...

The 44th episode of lava fountaining on Thursday saw streams ascending over 500 feet above the vent in spectacular color.

Add Yahoo as a preferred source to see more of our stories on Google. People watch the surf on the coast of Central Oregon. The Axial Seamount, an underwater volcano 300 miles off the coast of Oregon, ...

Scientists in the Philippines warned Saturday that a volcano in the middle of a lake could erupt and release toxic gas. Within a 24-hour period ending Saturday morning, 21 earthquakes shook the area ...

Scientists are predicting that a mile-long volcano off the U.S. West Coast will erupt this year. The Axial Seamount, an underwater volcano located about 300 miles off the coast of Oregon, is ...

Four decades on, the gap between well-monitored volcanoes and unmonitored ones still shapes who lives and dies. The new ...

The explosiveness of a volcanic eruption depends on how many gas bubbles form in the magma – and when. Until now, it was thought that gas bubbles were formed primarily when the ambient pressure ...

Volcanoes are Earth’s geologic architects. They’ve created more than 80 percent of our planet’s surface, laying the foundation that has allowed life to thrive. Their explosive force crafts mountains ...