A surprise eruption that shot steam, water and dark-colored rock and dirt dozens of feet into the sky Tuesday sent people running for safety in Yellowstone National Park. The hydrothermal explosion ...

The hydrothermal explosion at Yellowstone National Park last summer was caused by a "clogged up" plumbing system, the U.S. Geological Survey recently announced.

Ever since that time, dirty eruptions reaching up to 30 to 40 feet in height have occurred sporadically from the pool. Biscuit Basin has been closed to visitors due to the damage and the potential for ...

A hydrothermal eruption blasted from Black Diamond Pool at Biscuit Basin in Yellowstone on December 20, captured on a new monitoring webcam. The pool has erupted sporadically since a major explosion ...