The new map shows where volcanic ash would fall in the event of a Yellowstone supereruption, with the supervolcano's last ...

Evidence of elevated volcanic activity indicate eruption of Alaska's Mount Spurr volcano could happen within weeks or months, ...

Although this volcano hasn't erupted for about 1,000 years, 'it will assuredly erupt again,' US Geological Survey (USGS) experts say. But it's impossible to say exactly when it will blow ...

An erupting Hawaii volcano once again began shooting fountains of lava that reached hundreds of feet high on Tuesday.