Seismologists have discovered a reservoir of molten rock beneath the Yellowstone supervolcano that's 4.4 times larger than the shallower, long-known magma chamber.
Scientists have found that the reservoirs of supervolcanos consist of magma that intrudes into the crust in the form of numerous horizontally oriented sheets resting on top of each other like a pile of pancakes.
How explosive would a volcanic supereruption at Yellowstone National Park be? It would be pretty devastating.
Yellowstone National Park assured guests and the public on Thursday that a super-volcano under the park was not expected to erupt anytime soon, despite an alarmist video that claimed bison had been seen fleeing to avoid such a calamity.
Supervolcanos are some of the largest and most explosive in the world. Now, though, scientists have discovered a trigger for these supereruptions, which tells them a bit more about what might make these supervolcanos explode.