Yellowstone National Park has closed Biscuit Basin for the rest of the 2024 season following a hydrothermal explosion on Tuesday morning.

The blast, which occurred around 10 a.m., launched steam and debris into the air but did not result in any injuries.

Video footage captured visitors running from the explosion, which was caused by water rapidly turning to steam in the shallow hydrothermal system beneath Black Diamond Pool.

The U.S. Geological Survey (USGS) indicated that further small explosions in the area are possible due to recent changes in the hydrothermal plumbing system.

Although the Grand Loop Road and other thermal basins remain open, the park has taken precautionary measures by closing Biscuit Basin.

The explosion sent geyser water and debris hundreds of feet into the air, with grapefruit-sized rocks found far from the site, and destroyed a boardwalk, NBC News has reported.

Some debris blocks were about 3 feet wide and weighed hundreds of pounds.

Hydrothermal explosions are relatively common in Yellowstone, which is known for its hot springs and thermal features, typically occurring in remote backcountry areas a few times a year, according to the USGS.

Written by B.C. Begley