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Yellowstone's Volcano Bigger Than Thought | Supervolcanoes |

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The underground magma resembles a mutant banana, with a knobby, bulbous end poking up toward the northeast corner of Yellowstone National Park, and the rest of the tubular fruit angling shallowly southwest. It's a single connected chamber, about 37 miles (60 kilometers) long, 18 miles (30 km) wide, and 3 to 7 miles (5 to 12 km) deep.

Previously, researchers had thought the magma beneath Yellowstone was in separate blobs, not a continuous pocket.

The shallowest magma, in the northeast, also matches up with the park's most intense hydrothermal activity, Farrell said. The new study is the best view yet of this zone, which lies outside the youngest caldera rim.


Hmmm... this is the supervolcano that was already estimated to destroy Seattle when it erupts, right? And probably screw up the planet's weather for years?  And now they're saying it's 50% bigger than ever imagined before? Great news!

It helps put things in perspective, doesn't it?

It just means there's that much more heat to extract into electric power generators... :-)

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