A volcanic eruption on Iceland's Reykjanes peninsula that began on Monday (Dec. 18) appears to be slowing down, but only time will tell how long the unrest will last, officials say. When you purchase ...

This is the spectacular moment the Black Diamond Pool erupted at Yellowstone National Park. The sudden hydrothermal burst from the steaming spring was captured on a webcam on Saturday, December 20.

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Michael Poland, geophysicist with the ...

A volcano erupting on the Reykjanes peninsula in Iceland has opened a 2.5-mile-long (4 kilometers) fissure that appears to have stabilized and is spewing a "curtain" of lava, experts say. The eruption ...