A Hydrothermal Explosion Poked New Steamy Holes in Yellowstone’s Biscuit Basin Gizmodo Another hydrothermal explosion has occurred at Yellowstone National Park Yahoo Oops, it did it again: Another small hydrothermal explosion at Biscuit Basin USGS (.gov) Hydrothermal explosion at Yellowstone National Park forms new thermal pool ABC4 Utah ‘Hydrothermal Explosion’ Forms Boiling Pool at Yellowstone National Park That Could Become a New Geyser People.com