STUDY: Yellowstone National Park supervolcano is two-and-a-half times larger than previously thought | eCanadaNow

STUDY: Yellowstone National Park supervolcano is two-and-a-half times larger than previously thought | eCanadaNow: Helena, Montana – According to Jamie Farrell, the lead author in a University of Utah scientific study of Yellowstone National Park’s super volcano, the magma inside the volcanic caldera is 2.5 times larger than previously believed and spans a distance of 55 miles. A caldera is a volcano covered by land and which is shaped like a cauldron.