How It Works  |  Issue 113
SUPER VOLCANOES
Supervolcanoes are some of the most destructive natural structures on the
planet. Classified only after they have erupted, they eject more than one thousand cubic kilometres of lava in one go. They’re a thousand times more powerful than a standard volcano and so large that they could blanket the whole Earth in ash. The ground collapses above them when they explode, and the scars that mark their positions consume so much of the landscape that they become virtually invisible. Yet bubbling pools of magma still seethe below the surface, venting hot steam and gas through the ever-weakening crust above. Luckily, supervolcano eruptions are rare; hundreds of thousands of years can go by between major events. As a result, predicting the next one is a major challenge.
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Articles in this issue
Below is a selection of articles in How It Works Issue 113.