January 27, 2013

Lake Mývatn, Iceland

Photograph by Jonas Bendiksen, National Geographic

"Pseudo craters" mark the land surrounding Lake Mývatn in Iceland. The southern part of the lake rests on a lava flow that was emitted 2,000 years ago. The pseudo craters are continually formed as water trapped beneath the Earth's surface turns to steam and explodes through the layer above.

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