Yellowstone: Supervolcano

The geothermal features of Yellowstone National Park are a clue to its deadly secret. It sits on a massive supervolcano. But why can't we see it and will it ever erupt? Earth Science - Geology - Learning Points. Yellowstone National Park sits on a supervolcano. Yellowstone boasts hydrothermal features fuelled by the supervolcano. There is evidence of a massive depression called a caldera, which suggests that the last eruption of the volcano happened 640,000 years ago. When Yellowstone's supervolcano next erupts it will produce an explosion with the power of 1000 atomic bombs. A Twig Context Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in action in the real world.