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A supervolcano is a large volcano that has had an eruption of magnitude , which is the largest value on the Volcanic Explosivity Index VEI . This means the volume .
The Yellowstone Caldera is a volcanic caldera and supervolcano in Yellowstone National Park in the Western United States, sometimes referred to as the Yellowstone .
A volcano is an opening in Earth’s crust where magma breaks through, raining down molten rock, ash and gases. There are several types of volcanoes..
Super Volcano The Ticking Time Beneath Yellowstone National Park [Greg Breining] on Amazon.com. *FREE* shipping on qualifying offers. Despite growing .
Volcanoes [Peter Francis, Clive Oppenheimer] on Amazon.com. *FREE* shipping on qualifying offers. The second edition of Volcanoes discusses the impact of .
You probably have read about the Richter scale when you stu.d earthquakes in science class. The Richter scale measures earthquake strength. Volcanoes have a similar .
USGS Volcano Hazards Program The Alaska Volcano Observatory website AVO includes complete information about volcanoes in Alaska..