Iezzi's team with the USGS Cascades Volcano Observatory monitors the Cascades daily. Their infrasound and seismic sensors detect cracks and movement from below as magma is forced upward.

“People don't notice.” Poland is with the U.S. Geological Survey’s Cascades Volcano Observatory in Vancouver, Washington. He said Axial’s location, a mile underwater and 280 miles west of ...

Six earthquakes were recorded at Mount Adams in September, the most since monitoring began in 1982, according to the U.S. Geological Survey's Cascades Volcano Observatory. The agency and the ...

With eruptions in 1998, 2011, and 2015, the volcano serves as a perfect laboratory, and experts expect an eruption by the end ...

according to a team of geoscientists from Cornell University and Cascades Volcano Observatory. While visible lava at the surface is an obvious indicator of activity, the long-standing belief is that ...

Expansive lava flows in the Sáttítla Highlands was captured by satellites ahead of the recent designation of the area as a national monument.