NASA's Juno spacecraft watches most powerful volcanic event ever seen on Jupiter's moon Io

An image shows Io and the Juno spacecraft with a top down view of its south pole and the solar system's biggest record volcanic eruption .

Even for Jupiter's moon Io, the most volcanic body in the solar system, a recent volcanic event witnessed by NASA's Juno spacecraft takes the biscuit.

The event was just one eruption centralized in a newly found hotspot region of Io estimated to be larger than Lake Superior on Earth. The currently unnamed region is so powerful that the energy it belts out is equivalent to six times the energy produced by all of Earth's power plants combined.