Ground is swelling under Yellowstone
From Times Wire Reports
Yellowstone National Park, once the site of a giant volcano, has begun swelling, possibly because molten rock is accumulating beneath the surface, scientists report.
But “there is no evidence of an imminent volcanic eruption,” said geophysicist Robert B. Smith. Smith and colleagues report in the journal Science that the flow of the ancient Yellowstone crater has been moving upward almost 3 inches per year for the last three years.
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