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 ...

University of Birmingham volcanologist Mike Cassidy argued that the biggest danger could come, not from Yellowstone and Mount Etna, but from hidden volcanoes that appear dormant and are barely ...

Some volcanoes erupt with little to no warning, posing serious risks to nearby communities and air traffic. A study of Alaska's Veniaminof volcano reveals how specific internal conditions like slow ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Can a volcano rise ...

A mysterious and highly active undersea volcano off the Pacific Coast could erupt by the end of this year, scientists say. Nearly a mile deep and about 700 miles northwest of San Francisco, the ...