Yellowstone Eruption 2025. Yellowstone volcano observatory scientists continue to examine data from the black diamond pool area of biscuit basin, where a hydrothermal explosion took place on july 23, 2025. The biscuit basin area of yellowstone national park in wyoming is closed after a hydrothermal explosion tuesday morning, park officials said in a news release and post on x.

Grand loop road remains open to vehicles, and other nearby thermal basins, like black sand basin, are open. Yellowstone volcano observatory scientists continue to examine data from the black diamond pool area of biscuit basin, where a hydrothermal explosion took place on july 23, 2025.