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

Lava in Hawaii, seismic shaking in Alaska and underwater rumblings near Oregon. Scientists say it’s not the end of the world, but it’s definitely worth watching.

Recent volcanic activity across the Pacific Ring of Fire has raised alarms among scientists and volcanologists, with several ...

Volcanoes are rumbling as scientists monitor earthquakes at Washington's Mount Rainier and Alaska's Iliamna volcano.

Geologists, seismologists, volcanologists, and residents in Anchorage, Alaska have had their watchful eyes on Mount Spurr for the better part of a year after unprecedented seismic activity has ...

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 ...

How should you prepare to protect your health and home for a potential ash cloud over Anchorage? Mount Spurr near Anchorage is showing signs of unrest, and scientists now say an eruption is more ...

Scientists warn that Alaska’s Mount Spurr is showing signs of increased activity and could erupt in the coming weeks or months. An eruption could lead to widespread ashfall in Anchorage and ...

Mount Spurr erupted once in 1953 and three times in 1992, according to the observatory. Both years saw eruptions at the Crater Peak vent, located two miles south of the volcano’s summit.

Mount Spurr erupted once in 1953 and three times in 1992, according to the observatory. Both years saw eruptions at the Crater Peak vent, located two miles south of the volcano’s summit.

Mount Spurr erupted once in 1953 and three times in 1992, according to the observatory. Both years saw eruptions at the Crater Peak vent, located two miles south of the volcano's summit.