Add Yahoo as a preferred source to see more of our stories on Google. Recent weeks have seen a noticeable uptick in volcanic activity across America, raising eyebrows...and a few heart rates. From ...

Volcanoes in Alaska, Washington state, Oregon and Hawaii have been rumbling and even spewing lava, enough to spark a swarm of news stories. But despite the jolts and temblors, geologists say there's ...

One of the most dangerous volcanoes in America was shaken by hundreds of earthquakes Tuesday morning. Mount Rainier, which the U.S. Geological Survey considers the second most dangerous volcano in the ...

Recent weeks have seen a noticeable uptick in volcanic activity across America, raising eyebrows...and a few heart rates. From underwater rumbles off the Oregon coast to lava flows in Hawaii and ...