Scientists Identify 'Lid' Containing Yellowstone Supervolcano Magma Chamber

Researchers using advanced seismic imaging have identified a containment layer approximately 3.5 to 4 kilometers beneath Yellowstone, which appears to regulate pressure in the supervolcano's magma reservoir and prevent eruption. The discovery provides new understanding of volcanic containment mechanisms in one of the world's most closely monitored geothermal systems. This finding advances volcanic science globally and may inform risk assessment for other supervolcano sites worldwide. The research contributes to long-term monitoring of Yellowstone, which sits beneath parts of Wyoming, Montana, and Idaho.