💥 On December 20, 2025, a hydrothermal explosion occurred in the Biscuit Basin area of Yellowstone National Park. The sudden release of superheated water, steam, and rock fragments caused localized surface disruption within the geothermal zone. Hydrothermal explosions result from a rapid buildup of pressure in underground waters heated by magmatic heat. Such events are not directly related to volcanic eruptions, but they pose a potential hazard to visitors and park infrastructure. The incident