A new thermal vent spewing steam in the air at Yellowstone National Park is gaining attention, mainly because it’s visible ...

Mount Spurr has shown increasing signs of activity. These are now at a level where an eruption is plausible. Nothing is ever guaranteed with Alaskan volcanoes: they can always ...

A major US city that's home to nearly 300,000 people is bracing for an impending volcanic eruption. Municipality and school ...

Yellowstone has never erupted within recorded human history. But a new discovery has highlighted just how active this ...

The eruption lasted 29 hours between 9:26 a.m. Hawaiian time Wednesday through 1:49 p.m. Thursday, according to the U.S. Geological Survey. During the last eight hours, fountains shot up to 600 feet ...

Authorities said as they raised the alert status to the highest level, and an Australian airline cancelled some flights into ...