Loic Poidevin / Eruption and molten lava flowing down the sides of the Erta ale volcano (the smoking mountain) in the Afar desert, Northern Ethiopia, February 2009
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Jabruson / Red hot lava flow from Kimanura volcano eruption, Virunga NP, Dem Rep of Congo 1989 Africa
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Ingo Arndt / Old Faithful geyser errupting, Yellowstone National Park, Wyoming, USA
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Kirkendall-Spring / Old Faithful Geyser in the Upper Geyser Basin of Yellowstone National Park, Wyoming, USA, June 2013.
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Kirkendall-Spring / Riverside Geyser along the Firehole River in the Upper Geyser Basin of Yellowstone National Park, Wyoming, USA. June 2013.
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Kirkendall-Spring / Crowd observing the Turban and Giant Geysers in the Upper Geyser Basin of Yellowstone National Park, Wyoming, USA, June 2013.
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Kirkendall-Spring / Sunrise at Castle Geyser in the Upper Geyser Basin, Yellowstone National Park, Wyoming, USA, February 2013.
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Kirkendall-Spring / Geyser erupting in the Norris Geyser Basin in Yellowstone National Park, Wyoming, USA, June 2013.
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Tui De Roy / Fissure eruption of Chico Volcano into 9km diameter caldera. Sierra Negra volcano, Isabela Island, Galapagos, Ecuador. October 2005.
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Juan Carlos Munoz / Strokkur geyser errupting. The geyser is in the geothermic region beside the Hvítá River. Iceland, July 2009
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Guy Edwardes / Strokkur geyser about to erupt, Geysir, Haukadalur, Iceland. July 2009
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Neil Lucas / Lava flows from errupting Arenal volcano at night. Costa Rica
