In a jaw-dropping moment that has gone viral on social media, a tourist captured a once-in-a-lifetime photo with a volcanic ...

Tuesday's eruption also caused the evacuation of the Blue Lagoon spa, one of the country's top tourist destinations.

As the viewpoint rotates counterclockwise around the summit, many other snowy mountains are visible in the background. #Alaska #volcano USGS Volcanoes UAF Geophysical Institute Alaska DGGS The ...

On Volcano Watch, we take a deep dive into the science of Mount Spurr and the chances it will erupt again, what we’ve learned ...