A magnitude 4.6 earthquake just struck near Alaska's Mount Spurr—a volcano currently showing signs of unrest. The tremor, ...

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

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 ...

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