Yellowstone Supervolcano eruption poses devastating threats to South Dakota and nearby states.

Yellowstone Supervolcano eruption could devastate South Dakota, covering the state in ash and posing threats to agriculture, infrastructure, public health, and causing harm to livestock, plants, and people. Nearby states like Idaho, Montana, North Dakota, and Wyoming would also face significant consequences. No signs of imminent eruption are present, but it remains a potential threat in the future.