A YELLOWSTONE volcano scientist sent a warning to states in the surrounding areas up to 1000 miles from the supervolcano after he found something that was a "real puzzle", it was revealed during a lecture.
Yellowstone volcano: How USGS scientist issued 1,000-mile warning after 'puzzling' find
A YELLOWSTONE volcano scientist sent a warning to states in the surrounding areas up to 1000 miles from the supervolcano after he found something that was a "real puzzle", it was revealed during a lecture.
