More ground uplift at Yellowstone
Randy Mann.
JAKE PARRISH/Press
Over the last 10 years or so, I’ve featured numerous articles about the Yellowstone supervolcano. We know that it is located practically in our backyard and any changes related to hydrothermal or ground movement will attract some media attention.
The Yellowstone Caldera in northwestern Wyoming and measures a rather big 34 by 45 miles. It is one of the most closely monitored volcanic systems in the world. Beneath its dramatic geysers, hot springs and steaming vents lies a vast and complex magma system. One of the most fascinating features of this system is a phenomenon known as volcanic uplift. Yellowstone uplift refers to the gradual rising of the Earth’s surface caused by underground movement of magma, hot fluids and tectonic forces. It has recently grabbed some public attention and can spark concern, but uplift is a normal and ongoing part of Yellowstone’s geologic behavior.
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