Visual observations have been a backbone of volcano research more than 2,000 years and remain fundamental to understanding ...

Add Yahoo as a preferred source to see more of our stories on Google. A recent earthquake swarm at Mount Rainier in Washington state, along with increased volcanic activity in Alaska, Oregon, and ...

One of the most active volcanoes in the world is gearing up for a spectacular eruption, according to the United States Geological Survey. A high fountaining phase is imminent at the Kilauea volcano on ...

Most webcams used by the USGS Hawaiian Volcano Observatory take a snapshot every few minutes to conserve bandwidth, but three webcams are currently “livestreaming” — meaning they transmit real-time ...

A Martian volcano once thought to be the result of a single eruption turns out to have a much more complex past. Orbital imaging and mineral data show it developed through multiple eruptive phases, ...

Mars has long captivated scientists with its mysterious volcanic landscape, but new revelations are changing the way we ...

What may look like a single volcanic eruption is usually the visible outcome of far more complicated activity taking place underground. Beneath the surface, magma can migrate, cool, mix, and ...