Most volcanoes form at the boundaries of Earth's tectonic plates, which are huge slabs of crust and upper mantle that fit together like puzzle pieces. Think of these plates as massive rafts floating ...

But some refused to evacuate during the hazardous lava fountaining episode.

A swelling underwater volcano off the West Coast may erupt later than previously projected. Scientists initially thought that the Axial Seamount, which lies 300 miles off the coast of Oregon, would ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Hawaii's Kīlauea volcano spewed lava nearly 1,400 feet into the sky during an eruption that ended early Christmas Eve morning, the ...

There are around 1,500 known active volcanoes worldwide. A volcano is considered active if it has erupted in the last 10,000 years. Around 40 to 60 volcanoes erupt every year.

An underwater volcano off the coast of Oregon is gearing up for an eruption, according to volcanologists who are monitoring for activity. The Axial Seamount-- an underwater volcano located about 300 ...

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 ...

Do you think the white frozen sheets over Antarctica may hold a secret? This White, frozen, and solid Antarctica, although it ...

Scientists are monitoring a city of Chicago-sized swath of rising ground at the northern volcanic rim of the Yellowstone ...