Yellowstone National Park’s Grand Prismatic hot spring is pictured in this undated handout photo obtained by Reuters April 23, 2015. The hot springs are among the park’s hydrothermal features created by the fact that Yellowstone is a supervolcano – the largest type of volcano on Earth. A new University of Utah study reports discovery of a huge magma reservoir beneath Yellowstone’s previously known magma chamber. That doesn’t increase the risk of an eruption, but means scientists are getting a better view of Yellowstone’s volcanic plumbing system. (Photo by Robert B. Smith/Lee J. Siegel/Reuters)
|