A surprise eruption occurred in Yellowstone National Park on Tuesday, causing steam, water, and dark-colored rock and dirt to shoot dozens of feet into the sky. The hydrothermal explosion took place around 10 a.m. in Biscuit Basin, located a couple of miles north of the famous Old Faithful Geyser.
Video footage captured the moment as a group of onlookers watched from a boardwalk, only to run for safety as the eruption sprayed and grew in front of them. The eruption damaged the boardwalk, with photos showing damaged guardrails and boards covered in rock and silt near muddy pools.
