“There is no indication that this swarm is related to magma moving through the shallow crust.”
The Yellowstone supervolcano, located in the US state of Wyoming, last erupted on a major scale 640,000 years ago.
According to the United States Geological Survey (USGS), the chances of a Yellowstone eruption is around one-in-730,000.
With 640,000 years having passed since the last major eruption, Yellowstone is edging closer to exploding – but it could still be thousands of years away.
However, experts are preparing for the worst now and are studying how a major eruption, which could instantly wipe out large swathes of the US, could be prevented.
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