An explosion on Mount Spurr could generate massive cloud of ash, which could mess with airplanes and cause issues for humans.

A major U.S. city is under threat from a potential volcanic eruption after more than 20 earthquakes were recorded in Alaska.

Three tourists filmed climbing near Mexico's Popocatepetl volcano ... In Alaska, Mount Spurr is rumbling with frequent small earthquakes, raising fears of a powerful eruption that could disrupt ...

Over the past two weeks, several equipment outages at the Philadelphia-based air traffic control center that guides planes to ...

If an eruption happens, it would likely occur at Crater Peak, shown in the background of this summit photograph. Photograph by Matt Loewen, Alaska Volcano Observatory, U.S. Geological Survey ...

More than two dozen earthquakes have rattled a massive Alaska volcano over the last two days, potentially signaling an imminent eruption. Mount Spurr, which is 11,000-foot-tall and located 81 ...

A mile-wide volcano has experienced hundred of earthquakes in the last few days. Scientists have warned that an eruption is ...

The underwater volcano is located off the Pacific Northwest coast. Current projections suggest an eruption could occur by year-end. Scientists are using an underwater volcano off the coast of the ...

Things are heating up hundreds of miles off the coast of Oregon, where a large undersea volcano is showing signs of impending eruption, scientists say. The volcano, known as Axial Seamount ...