Yellowstone volcano: 'First signs' supereruption on way revealed amid overdue claims
The Yellowstone caldera spreads beneath the states of Wyoming, Montana and Idaho and gets its chilling nickname as a supervolcano due to its ability to inflict devastation on a global level. It is monitored by the USGS (United States Geological Survey) for signs that a supereruption is on its way, something that has only happened three times in history, 2.1 million years ago, 1.3 million years ago and 640,000 years ago, leaving some to claim the massive eruption is overdue. Amid the speculation, Naked Science’s “Supervolcanoes” documentary revealed the warning signs would be seen long before an eruption happened.
The narrator said in 2013: “Any way you look at it, a supereruption would be a very nasty surprise, but how will the emergency services know one is on the way?
“The first sign of a Yellowstone eruption would probably be the ground rising.
“Just before Mount St Helens erupted, the mountain bulged, growing five feet per day, a similar kind of uplift would be likely at Yellowstone.
“As magma deep below the surface of the Earth rises, it splits the rocks above."
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