A hydrothermal explosion at Yellowstone National Park sent steam, mud, and debris high into the air. The dramatic event poses no broader volcanic threat.

Yellowstone's dynamic underground hydrothermal system remains a scientific enigma. Recent studies reveal a complex network of ...

A major Yellowstone eruption likely won’t happen for thousands, and potentially millions, of years. Scientists say that the magma underneath Yellowstone is mostly solid and not eruptible. One study ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week’s contribution is from Karissa Cordero, graduate student at ...

Yellowstone hydrothermal eruption caught on camera A hydrothermal eruption sends muddy water and steam flying at Yellowstone National Park.

A Yellowstone National Park hot spring erupted twice in two days this week, with the second and larger event sending muddy water and steam surging toward a nearby camera. Black Diamond Pool erupted on ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week’s contribution is from Pat Shanks, emeritus research ...