Supervolcano

The technical term for Yellowstone's supervolcano is "caldera," a Spanish word meaning ❋ Unknown (2010)

- The Yellowstone "supervolcano" will soon be among the best monitored hot spots in the world with the installation of new earthquake monitoring equipment. ❋ Unknown (2010)

Effects of a major eruption: When the Yellowstone Caldera, or "supervolcano," in Yellowstone National erupts again, it will render a huge swath of North America, from Vancouver to Oklahoma City, uninhabitable. ❋ The Week (2010)

The term "supervolcano" refers to any volcano capable of throwing out at least 300 cubic kilometres of magma during an eruption. ❋ Unknown (2010)

The media does love the term "supervolcano", and a number of ❋ Erik Klemetti [email protected] (2010)

But a wave of recent earthquake activity is raising fears that have their origins 642,000 years ago, when a Yellowstone "supervolcano" exploded so violently that it created the caldera itself. ❋ Unknown (2009)

Steve, as Mark says, just waving your hands and suggesting one of the great extinctions was caused directly by a "supervolcano" lacks something - citation, that's what's missing; evidence, found and published, for some physical process by which it could occur. ❋ Unknown (2009)