Yellowstone could erupt more frequently than previously thought

Sciencemag.org reports that the supervolcano beneath Yellowstone National Park in Wyoming recorded its last catastrophic eruption some 630,000 years ago, , forming a caldera that nearly spans the park’s width and belching a thick layer of ash, or tephra, across North America. But rather than a single event, Yellowstone may have erupted twice in a span of 270 years, new evidence from mud cores discovered off the coast of Santa Barbara, California, indicates.

READ MORE: 

http://www.sciencemag.org/news/2017/10/yellowstone-s-massive-volcano-could-erupt-more-frequently-scientists-thought?utm_campaign=news_daily_2017-10-25&et_rid=17043357&et_cid=1624006