Where can we find information on Yellowstone as a supervolcano and other supervolcanos?
The show you missed started: “Yellowstone is America’s first and most famous national park. Every year over 3 million tourists visit this stunning wilderness, but beneath its hot springs and lush forests lies a monster of which the public is ignorant.” It was BBC Horizon’s “Supervolcanoes” aired at 9:30 February, 3 2000. You will find the whole, fascinating story in by going to the BBC home page on the program, which includes a link to a transcrip of the full program. The Yellowstone Caldera is one of the largest and most active calderas in the world. Tremendous volcanic forces during the past 2 million years created the caldera and Yellowstone’s geysers, boiling hot springs, and mud pots. Cataclysmic eruptions 2.0, 1.3, and 0.6 million years ago ejected huge volumes of magma; each eruption formed a caldera and extensive layers of thick deposits. The youngest caldera is an elliptical depression, nearly 80 kilometers long and 50 kilometers wide, that occupies much of Yellowstone Nationa
