A cluster of earthquakes at Yellowstone National Park followed by the fourth eruption of its usually dormant geyser has sparked speculation about the world’s largest supervolcano. Is the big one about to blow, blanketing the U.S. with ash and sending the Earth into a volcanic ice age? Probably not, but some of the signs are there.
The United Nations world heritage site, which lies over giant chambers of molten magma, is actually the world’s largest super volcano, which erupted 2.1 million, 1.3 million and 640,000 years ago, causing massive devastation across the planet. Today, Yellowstone bubbles away with its hot springs and geysers with endearing names. The most famous is Old Faithful, so called because it puts on a show for visitors every 91 minutes. READ MORE
