Yellowstone volcano: How USGS spotted HUGE earthquake in 'largest event EVER

THE United States Geological Survey (USGS) revealed how they spotted a 6.1 magnitude earthquake below the Norris geyser of Yellowstone National Park, during a Facebook Live broadcast.



The Yellowstone volcano has erupted three times in history – 2.1 million years ago, 1.2 million years ago and 640,000 years ago. Experts have previously revealed that, should an earthquake occur, it could take less than two weeks before a catastrophic reaction is triggered. USGS Chief Seismologist Jamie Farrell revealed how experts at the US government agency were left biting their nails over a 6.1 magnitude earthquake.

www.express.co.uk