Beneath the rolling grasslands and geothermal wonders of Yellowstone National Park lies a geological structure of immense power, the Yellowstone caldera. The Yellowstone caldera formed when repeated massive eruptions ejected enormous volumes of volcanic material, causing the overlying rock to fracture and sink into the emptied space below.
How Deep Is The Yellowstone Caldera Exactly
This reservoir is what inflates the caldera today, but it is not the same as the ancient, collapsed void that defines the caldera's primary structure. The caldera floor, which sits at an elevation of approximately 7,500 feet above sea level, varies in depth relative to the surrounding rim.
7,500 feet Surface level within the depressed basin Maximum Caldera Depression Approx. Feature Depth/Measurement Notes Caldera Rim Elevation 8,000 - 10,000 feet Surrounding highlands formed by older volcanic flows Caldera Floor Elevation Approx.
How Deep Is The Yellowstone Caldera Exactly
1,000 - 1,500 feet Vertical drop from rim to floor at deepest points Shallow Magma Reservoir 5 - 10 miles deep Source of current ground swelling and geothermal activity The Role of Ancient Eruptions. More importantly, the current shallow magma reservoir, a pocket of partially molten rock, lies roughly 5 to 10 miles below the surface.
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