An underwater volcano 300 miles off the coast of Oregon is displaying signs of a potential eruption, UW researchers found.

A new study traces a 120-million-year-old 'super-eruption' to its source, offering new insights into Earth's complex geological history.

Lithium that pooled in a volcanic caldera in the western United States had no way out, thanks to a lack of rivers.

State health officials urge the public to take precautions as volcanic gas emissions — and volcanic smog known as vog — ...