Volcano

Mexico’s Popocatepetl volcano rumbled to life again this week, spewing out towering clouds of ash that forced 11 villages to cancel school sessions.

Northwest scientists are going to great distances – and great depths – hoping to help us understand our volcanic risk closer to home.

Hawaii's Kilauea began erupting inside its summit crater Thursday after scientists detected a glow in webcam images inside the Halemaumau crater.

The scientists aboard the research vessel Thompson are trying to answer complicated questions about what makes volcanos, specifically the Axial Seamount, tick. But sometimes the most serious scientific inquiry can face "crabotage."

Scientists are seeing new signs that magma is moving deep within the Three Sisters volcanic complex in Oregon’s Cascade Range, but there are no signs of imminent eruption.

Despite sitting almost on top of the volcano that erupted so violently, the Pacific nation of Tonga appears to have avoided the widespread devastation that many initially feared.

The region's most active volcano, the Axial Seamount, is 300 miles off the coast of Oregon. 

Congress gave final approval to a wide-reaching natural resource bill that extends more public lands protections in the Pacific Northwest.

The Pacific Northwest is home to a number of active volcanoes. How dangerous are they?

An underwater volcano, some 300 miles off the Oregon Coast, is providing clues about how to better understand — and predict — eruptions.