The Yellowstone supervolcano erupts, on average, about every 800,000 years. We believe that it last erupted about 860,000 years ago. It's overdue. It dumped a thick layer of ash ov... moreThe Yellowstone supervolcano erupts, on average, about every 800,000 years. We believe that it last erupted about 860,000 years ago. It's overdue. It dumped a thick layer of ash over most of the North West and the Midwest and probably caused hundreds of years of constant winter over the Northern Hemisphere. Will mankind survive such a catastrophe?
