Laki Fissure, Iceland

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Laki eruption in Iceland. View from the air of a cinder cone formed by high lava fountains during the 1783 eruption. This huge outpouring of lava from a 25-kilometer-long fissure totaled 12 cubic kilometers of basalt and covered 565 square kilometers of land -- the largest flow in recorded history.

Photo copyright R.W. Decker

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