Yellowstone Eruption 2024. No precursors to the event were detected by monitoring instruments.  — yellowstone national park visitors were sent running and screaming tuesday when a hydrothermal explosion spewed boiling hot water and rocks into the air.

The july 23, 2024, hydrothermal explosion at biscuit basin resulted from water suddenly transitioning to steam in the shallow hydrothermal system beneath black diamond pool and was not caused by volcanic activity. No precursors to the event were detected by monitoring instruments.