When most of us think about active volcanoes in the U.S., Mount St. Helens, Mt. Rainier and a few others will first come to mind. However, one of the most active volcanoes in the region is about a ...

Mount Rainier is central to Tacoma’s identity, so much so that it appears on the city’s logo. But as CNN recently reported, the striking mountain is also an active volcano — and no one knows when it ...

Scientists have found giant magma reservoirs under dormant volcanoes in the Cascades. A new study shows that the magma system can persist even after eruptions.

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Explore the landmarks of Washington State, from majestic mountains to stunning glaciers. Discover the natural beauty of 'The ...

The deepest regions of Earth's oceans, known as the abyssal and hadal zones, lie at least as far under the water's surface as ...

A seismic survey challenges the long-standing belief that only active volcanoes have large magma bodies sitting beneath them.

Staying safe during natural disasters takes preparation and awareness. Pierce County faces the threat of a volcanic eruption, ...

A groundbreaking study has revealed that massive magma reservoirs still exist beneath dormant volcanoes, challenging ...

View of Mount Rainier from the northeast ... potentially triggering violent eruptions. This interaction between water and magma underscores the importance of studying the relationships between ...

It appears that these magma bodies exist beneath volcanoes over their whole lifetime, not just during an active state.' ...

One of the world's most active volcanoes erupted over 1,000 times in the first 19 days of 2025, producing ash clouds over two miles high.