A magnitude 4.6 earthquake has hit Alaska just miles from Mount Spurr, which has been showing signs of unrest and is at risk ...

The US Geological Survey reported a magnitude 4.6 quake near Petersville, approximately 86 miles from Mount Spurr, with close ...

A tremor shakes the Alaskan wilderness, echoing through the vast expanse as Mount Spurr watches silently. Could this be a prelude to nature's fiery spectacle?

Tucked in southcentral Alaska, this aggressive volcano might erupt anytime soon. Residents are urged to prepare themselves.

Thermal infrared image from a helicopter overflight of the summit crater lake at Mount Spurr, Alaska, a volcano. The lake has a relatively warm water surface on one side, but snow and ice covering ...

North of Iliamna, another Alaskan volcano, Mount Spurr, has been experiencing swarms of shallow earthquakes since February. It's now at a normal advisory level.

On Alaska's Kenai Peninsula, a flurry of small earthquakes shook the Iliamna volcano on June 15. No surface activity was observed, however, and on July 1 the volcano was set at a normal alert code.

A seismologist from Seattle discussed recent volcanic activity across the United States. Here's what you should know.