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

Unlike the Pacific Northwest’s steep-sloped Cascade volcanoes such as Mount St. Helens or Mount Hood that tend to explode ...

Jan. 3—Registration is still open for the Mount St. Helens Institute's 12-week Volcano Naturalist Program, which runs Feb. 4 to April 29. Participants in this program will explore diverse ...

When Mount St. Helens erupted in 1980, blanketing Central Washington — including the Yakima Valley — in volcanic ash, then-President Carter made a trip to the mountain to survey the damage ...

Eagle-eyed geologist Mark Tingay recently noticed the emergence of a ‘ghost island’ in November of 2024, caused by a ...

In remembrance of the 325th anniversary of the last time the Cascadia Subduction Zone lost its grip, on Jan. 26, 1700, wreaking havoc on the Oregon Coast, a wave-height rerun about the “Eight of the ...

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

When Mount St. Helens erupted in 1980, President Jimmy Carter declared the entire state of Washington a federal disaster area ...

Oregon State University researchers say a volcano under the Pacific Ocean off the Oregon coast is likely to erupt sometime ...

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.

An undersea volcano off Oregon’s coast will likely ... Unlike the Pacific Northwest’s steep-sloped Cascade volcanoes such as Mount St. Helens or Mount Hood that tend to explode when they ...