Experts believe a Mount Rainier eruption would post a grave threat to millions who live in the southern and eastern sections ...

The Mount St. Helens Institute is experimenting with ... center served as the site’s visitor center while Johnston Ridge Observatory is closed. The center is set to reopen again on May 17 ...

With five active volcanoes, including Mount St. Helens, the threat of a repeat eruption looms large in many minds. Scientists at the U.S. Geological Survey’s Cascades Volcano Observatory want to ...

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

To compare, Mt. St. Helens' eruption in 1980 was a level 4. Known as a super eruption for its magnitude, the event emptied out enough volcanic material to produce the 30-by-40-mile-wide caldera.

From Seattle airport additions to new direct flights and destinations to watch, here's a look at trends affecting travel to and from the Seattle area in 2025.

"When we used magnetotellurics, we were able to see, actually, there’s not a lot there," said Ninfa Bennington, lead author on the study and a research geophysicist at the Hawaiian Volcano Observatory ...

Axial Seamount off Oregon's coast is the most active volcano in the Pacific Northwest, about 300 miles offshore and just under a mile beneath the ocean waves.

The Axial Seamount is not expected to threaten human population centres but it could help scientists forecast the eruption of ...

The cable – part of an underwater observatory – allows Chadwick ... love with volcanoes while in college in Colorado. When Mount St. Helens erupted in 1980, he volunteered to work with the ...