Yellowstone Supervolcano Eruption 2024 Eruption. Even so, the math doesn’t work out for the. People visit yellowstone national park every year to observe its wildlife and vast array of hydrothermal features.

People visit yellowstone national park every year to observe its wildlife and vast array of hydrothermal features. About 630,000 years ago, a powerful eruption shook the region, spewing forth 240 cubic miles’ worth of rock and ash and creating the yellowstone caldera, a volcanic depression 40 miles wide.