Yellowstone National Park geologists have confirmed that a small hydrothermal explosion that occurred earlier this month formed a new thermal pool.

According to the Yellowstone Volcano Observatory, hydrothermal explosions are “violent and dramatic events resulting in the rapid ejection of boiling water, steam, mud, and rock fragments.” These ...

“Ground that the team had walked on just 2 days earlier had developed into an actively boiling pool!” officials wrote on June ...

The pool, measuring 21 x 17 feet, formed near newly opened vents and spouted water up to 30 feet high Experts say it's unclear if the pool will remain active or if Biscuit Basin's heat activity has ...

When Yellowstone National Park staff arrived to work on Saturday, June 13, they noticed something odd: the Firehole River flowing from Biscuit Basin was filled with “a light‑grey, milky plume.” Upon ...

Just after 5:09 a.m., on Saturday, June 13, monitoring equipment in Biscuit Basin registered anomalous activity, including seismic energy and a low-frequency acoustic signal, called “infrasound,” that ...