By the end of the day, about 7 p.m. Pacific Standard Time, data from 16 crystals was collected and analyzed. The data, which ...

The Alaska Volcano Observatory on Wednesday said Mount Spurr is at risk of erupting within the next few weeks or months, potentially impacting residents 78 miles away in the city of Anchorage.

The Alaska Volcano Observatory said signs indicated a Mount Spurr eruption was likely, though not certain, in the weeks or ...

A volcano near Anchorage, Alaska's largest city, could erupt in the 'next few weeks or months,' the Alaska Volcano ...

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

United States Geological Survey scientists have shared maps that show where ash would fall across the US if a Yellowstone ...

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

From September to October last fall, Mount Adams saw several earthquakes. They weren't any larger than a 2.0, but now researchers are installing more monitors.

One of the largest active volcanoes has been rocked by a series of earthquakes, putting experts on high alert and prompting ...