The 45th anniversary of the catastrophic eruption of Mount St. Helens is on May 18. Here's what to know and when the volcano ...

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

A massive underwater volcano, Axial Seamount, 300 miles off Oregon’s coast, may erupt soon after over 1,000 daily quakes and ...

The Mount St. Helens eruption anniversary prompts investigation into the California earthquakes: eruption history, threat levels.

A massive volcano is now steaming from its summit crater as scientists warn it could soon erupt. In their latest update, they ...

An underwater volcano near the US coast, named Axial Seamount is showing signs of activity that suggest it might erupt ...

A future eruption of the Yellowstone supervolcano or similar mega-volcano could bury large parts of the U.S. in ash, disrupt global climate, and threaten millions—scientists are closely monitoring the ...

For a pilot, the first signs of flying into an ash cloud can include sudden darkness, fluctuating airspeed, and landing ...

While scientists don't have an exact timeline of when the volcano could erupt, they say it's likely to happen before the end ...

An underwater volcano, Axial Seamount, located off the Oregon coast, is showing signs of renewed activity, with scientists ...

Since Iceland is expected to enter a period marked by more frequent eruptions, increasingly reliable volcano warnings are needed now more than ever. “There is a lot more work to do, and all volcanoes ...