Melting glaciers may be setting off a chain reaction deep beneath our feet. Scientists have found that as glaciers retreat ...

As glaciers melt around the world, long-dormant volcanoes may be waking up beneath the ice. New research reveals that massive ...

An Alaskan volcano that has been inactive for more than 100 years is showing signs of rumbling, according to scientists.

This Alaska volcano might erupt soon. Here's the chaos it could cause. An explosion on Mount Spurr could generate massive cloud of ash, which could mess with airplanes and cause issues for humans.

Cloudy weather has rendered Alaska Volcano Observatory planes, helicopters and satellites useless for data collection since March 21.

Is it going to blow — or blow over? Seismic activity levels on Alaska’s Mount Spurr soared earlier this week, sparking fear that an eruption could be on the horizon. “Earthquake activity ...

An Alaska volcano that has been intermittently oozing lava and releasing small bursts of ash and steam since June erupted with new ferocity on Friday, sending clouds of ash more than 3 miles (4.8 ...

An increase in seismicity—marked by frequent tremors—was observed recently at Alaska's Iliamna Volcano, which last erupted in 1867.

Alaska volcano researchers say seismic activity around Mount Spurr has continued to decline over the last month, but the closest active volcano to the state’s population centers could still erupt.

An ice-clad behemoth among Alaska’s Aleutian Range mountains is sharing secrets about what makes some volcanoes tick — namely, ones that show little sign of erupting before they blow. In a ...

Alaska's Mount Redoubt erupted several times Thursday, spewing a more than 12-mile-high cloud that could drop ash on Anchorage for the first time since the volcano began erupting Sunday night.

Mount Redoubt, the volcano across Cook Inlet that erupted in the spring, is rumbling again with shallow earthquakes and is being closely monitored by scientists.