University of Utah seismologists discover magma reservoir under Yellowstone (with scale in kilometers) from 12 2015 Watch Video
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Description: This animation shows the underground volcanic plumbing system beneath the Yellowstone supervolcano in Wyoming, as revealed by a new University of Utah seismic imaging study. The green lines represent the boundary of Yellowstone National Park. The study focused on Earth's crust, shows the previously known magma chamber (orange) about 3 to 9 miles beneath the surface, and reveals a previously unknown magma reservoir (red) at a depth of 12 to 28 miles. Beneath that is the Yellowstone hotspot plume