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, ...

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.

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 is one of 53 volcanoes in Alaska that have been active in the past 250 years. Though the main summit vent has remained dormant for over 5,000 years, its Crater Peak vent has erupted ...

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.

A roiling eruption column rising from Mount Spurr’s Crater Peak vent during its Aug. 18, 1992, eruption. R.G. McGimsey, /, Alaska Volcano Observatory ...

Alaska's Mount Spurr, an active volcano near the most populated region in the state, is getting even closer to an eruption, according to volcanologists. Scientists at the Alaska Volcano ...

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.

By Maria Aguilar Prieto, CNN (CNN) — A volcano near Alaska’s most populous city could be on the brink of eruption after showing signs of unrest over the past 10 months, according to experts ...

By Maria Aguilar Prieto, CNN (CNN) — A volcano near Alaska’s most populous city could be on the brink of eruption after showing signs of unrest over ...