Earthquake Swarms Are Shaking Yellowstone’s Supervolcano. Here’s What That Means.

Something is rocking the massive supervolcano beneath Yellowstone National Park. Thanks to a recent earthquake swarm, the Yellowstone supervolcano has seen upwards of 200 quakes since February 8, 2018 along with countless smaller tremors. The largest earthquake was an unremarkable magnitude 2.9, and all of them have hit about five miles beneath the surface. Larger...

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