US Geological Survey volcanic experts described a dramatic eruption at Black Diamond Pool in Yellowstone National Park, dubbed 'Kablooey!' by officials, and occurring on Saturday morning at 9:23 a.m. Video evidence shared by the USGS on social media depicted mud spraying from the pool, located in Biscuit Basin between the popular sites of Old Faithful and Grand Prismatic.

Recent eruptions at the pool have primarily been audible due to happening at night or during ice obscuration, rather than visible events like this one. Previously, a significant hydrothermal explosion in July 2024 sent mud and rocks flying and led to visitor area closures.

The recent eruptions, reaching heights of up to 40 feet, have been part of ongoing volcanic activity monitored by a newly installed observational setup. The Yellowstone Volcano Observatory expressed excitement over this latest eruption, noting the clarity of the view against the snowy backdrop of winter in Yellowstone.

Despite the spectacular displays, experts have indicated that there is no predictable pattern or precursor to these eruptions, assuring visitors that Yellowstone remains a unique and extraordinary geological site with over 10,000 hydrothermal features, including more than 500 geysers.