Japan, the North Island of New Zealand, and Kamchatka, Russia are some of the places on earth where geysers spew and hot, algae-hued water spills onto the ground. Yellowstone's Mammoth Hot Springs is forming some new, small terraces.
A massive magma reservoir has been discovered 12 to 28 miles beneath the Yellowstone supervolcano, and it is 4.4 times larger than the shallower, long-known magma chamber, according to new research.
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