Milan Radisics / Aerial shot of rootless cones or pseudocraters, formed by steam explosions as flowing hot lava crosses over a wet surface, South Iceland, August 2018.

Shane P. White / Tephra during volcanic eruption, Mount Yasur, Tanna Island, Vanuatu

Sergey Gorshkov / Plume of volcanic ash lit by a basaltic lava flow from the Tolbachik volcano complex, Kamchatka, Far East Russia, eruption lasted from December 22nd 2012 through to January 2nd 2013

Ingo Arndt / Close up of exploding lava as Stromboli volcano erupts, Italy, Europe

Doug Perrine / Hot lava from the 61G flow, emanating from Pu'u O'o on Kilauea Volcano, flows over sea cliffs into the ocean under the stars and moon, Kamokuna, Kalapana, Hawaii Volcanoes National Park, Puna, Hawaii...

Vincent Grafhorst / Man looking into crater at night, Mount Nyiragongo, Virunga National Park, Democratic Republic of the Congo

Vincent Grafhorst / Lava in volcanic crater, Mount Nyiragongo, Virunga National Park, Democratic Republic of the Congo

Enrique Lopez-Tapia / Travelers watching lava on Erta Ale volcano crater. Afar Region, Ethiopia, Africa. November 2014.

Christophe Courteau / Lava Lake at night in the crater of Nyiragongo Volcano, Virunga National Park, North Kivu Province, Democratic Republic of Congo. September 2015.

Christophe Courteau / Lava Lake at night in the crater of Nyiragongo Volcano, Virunga National Park, North Kivu Province, Democratic Republic of Congo. September 2015.

Pedro Narra / Scientists observing lava and ash plume erupting from Fogo Volcano, Fogo Island, Cape Verde, 29th November 2014.

Doug Perrine / Red hot lava from Kilauea Volcano flowing into ocean at West Kailiili, Hawaii Volcanoes National Park, Big Island, Hawaiian Islands, USA.

Tom Gilks / Nyiragongo volcano lava lake, Virungas National Park, Democratic Republic of Congo February 2015.

Sergey Gorshkov / Tolbachik Volcano erupting with lava flowing down the mountain side. Kamchatka, Russia. November 29th 2013. Winner of the Wildscapes category, Wildlife Photographer of the Year Awards (WPOY competitio...

Sergey Gorshkov / Tolbachik Volcano erupting, Kamchatka, Russia

Sergey Gorshkov / Red hot lava flow from Plosky Tolbachik Volcano, Kamchatka Peninsula, Russia, 15 December 2012

Sergey Gorshkov / Ash plume and lava erupting from Plosky Tolbachik Volcano, Kamchatka Peninsula, Russia, 5 December 2012

Sergey Gorshkov / Red hot lava from the Plosky Tolbachik Volcano eruption, Kamchatka Peninsula, Russia, 5 December 2012

Erlend Haarberg / Volcanic eruption at Eyjafjallajokull with ash and lava exploding into the air at night, Iceland, May 2010

Loic Poidevin / Aerial view of hot lava in the crater of the Erta ale volcano (the smoking mountain) in the Afar desert, Northern Ethiopia, February 2009

Rob Tilley / River of lava flowing from the Pacaya volcano, Los Pocitos, Guatemala, Central America, June 2010

Uri Golman / Volcanic eruption near Eyjafjallajoekull glacier, hot lava flowing down into the Thorsmork valley, Iceland, 24/03/2010. Volcano dormant since 1821.

Uri Golman / Volcanic eruption near Eyjafjallajoekull glacier, hot lava flowing down into the Thorsmork valley, Iceland, 24/03/2010. Volcano dormant since 1821.

Juan Carlos Munoz / Eyjafjallajkull volcano erupting, Fimmvruhls area, Iceland, 7th of April 2010

Juan Carlos Munoz / Eyjafjallajkull volcano erupting, Fimmvruhls area, Iceland, 7th of April 2010

Juan Carlos Munoz / Eyjafjallajökull volcano erupting, Fimmvörðuháls area, Iceland, 7th of April 2010

Juan Carlos Munoz / Eyjafjallajökull volcano erupting, Fimmvörðuháls area, Iceland, 7th of April 2010

Juan Carlos Munoz / Eyjafjallajkull volcano erupting, Fimmvruhls area, Iceland, 5th of April 2010

Juan Carlos Munoz / Eyjafjallajökull volcano erupting, Fimmvörðuháls area, Iceland, 7th of April 2010

Orsolya Haarberg / Acidic steam and solidified lava surface at Leirhnjkur. Iceland. July 2008

Doug Perrine / Hot molten pillow lava erupts from an underwater lava tube at ocean entry of Kilauea Volcano on Hawaii Island, Hawaii

Patricio Robles Gil / Yasur Volcano erupting, Tana Island, Vanuatu Archipelago, New Hebrides

Doug Perrine / Pahoehoe lava flows off Lae' apuki bench into sea, at night, Kilauea active volcano, Hawaii, USA. Jan 2000

Doug Perrine / Hot pahoehoe lava flowing from Kilauea Volcano onto Lae'apuki Bench, Hawaii Volcanoes National Park

Doug Perrine / Hot pahoehoe lava flowing from Kilauea Volcano, Hawaii Volcanoes National Park, Hawaii.

Doug Perrine / Hot pahoehoe lava flowing from Kilauea Volcano, Hawaii Volcanoes National Park, Hawaii.

Nick Turner / Tourists watching Mount Yasur erupt at dusk, Tanna, Vanuatu Aug-04

Nick Turner / Tourists watching Mount Yasur erupt at dusk, Tanna, Vanuatu Aug-04

Nick Turner / Tourists watching Mount Yasur erupt at dusk, Tanna, Vanuatu Aug-04

Tui De Roy / Volcanic eruption, radial flank fissure, February 1979, lava fountaining from splatter cone at dusk, Cerro Azul, Isabella Island, Galapagos Islands, Ecuador

Tui De Roy / Volcanic eruption, spatter cone formation and lava fountain from radial fissure, February 1979, Cerro Azul east flank, Isabella Island, Galapagos Islands, Ecuador

Tui De Roy / Tungurahua Volcano erupting, near Banos, Andes Mountains, Ecuador

Mitsuaki Iwago / Hot lava entering the ocean with resulting steam plumes, Galapagos Islands, Ecuador

Juergen Freund / Volcano erupting with laval flow. Siau island Sangihe Talaud Is Sulawesi Indonesia

Pete Oxford / Erruption of parasitic cone, with lava flowing into sea Fernandina Island, Galapagos

Jabruson / Red hot lava flow from Kimanura volcano eruption, Virunga NP, Dem Rep of Congo 1989 Africa

Doug Perrine / Shimmering heat waves distort the image of diver as he samples erupting pillow lava at ocean entry of Kilauea Volcano, Hawaii Island.

Doug Perrine / Videographer filming pillow lava erupting underwater at Kilauea Volcano, Hawaii.

Doug Perrine / Diver shaping erupting pillow lava by hand to form underwater lava sculptures at ocean entry from Kilauea Volcano, Hawaii.

Doug Perrine / Diver sampling red hot pillow lava at underwater eruption of Kilauea Volcano, Hawaii.

Milan Radisics / Aerial shot of rootless cones or pseudocraters, formed by steam explosions as flowing hot lava crosses over a wet surface, South Iceland, August 2018.

Milan Radisics / Aerial shot of rootless cones or pseudocraters, formed by steam explosions as flowing hot lava crosses over a wet surface, South Iceland, August 2018.

Milan Radisics / Aerial shot of rootless cones or pseudocraters, formed by steam explosions as flowing hot lava crosses over a wet surface, South Iceland, August 2018.

Shane P. White / Tephra during volcanic eruption, Mount Yasur, Tanna Island, Vanuatu

David Fleetham / View across crater of dormant Haleakala / East Maui Volcano. Haleakala National Park, Maui, Hawaii. March 2016.

Ashley Cooper / Capturing geothermal steam from boreholes to power the Svartsengi geothermal power station in Keflavik near Reykjavik in Iceland. September 2010. The power station produces electricity and supplies ho...

Ashley Cooper / Hellisheidi geothermal power station in Hengill, Iceland. It also supplies hot water via a pipeline to Reykjavik for space heating for households and industry September 2010.

Ashley Cooper / Hellisheidi geothermal power station in Hengill, Iceland. It also supplies hot water via a pipeline to Reykjavik for space heating for households and industry September 2010.

Ashley Cooper / Krafla geothermal power station near Myvatn, Iceland, which produces electricity as well as supplying hot water to heat buildings in the surrounding area. September 2010.

Ashley Cooper / Fumaroles emitting steam in the geothermal area of Hverir near Myvatn, northern Iceland, September 2010.

Ashley Cooper / Greenhouses growing tomatoes heated by geothermal hot water near Husafell in Iceland. September 2010.

Ashley Cooper / Part of geothermal plant that removes water from the steam before it is fed into turbines at Krafla geothermal power station near Myvatn, Iceland,September 2010.

Ashley Cooper / Krafla geothermal power station near Myvatn, Iceland, which produces electricity as well as supplying hot water to heat buildings in the surrounding area. September 2010.

Ashley Cooper / Krafla geothermal power station near Myvatn, Iceland, which produces electricity as well as supplying hot water to heat buildings in the surrounding area. September 2010.

Ashley Cooper / Control room hall of Krafla geothermal power station, which produces electricity as well as supplying hot water to heat buildings in the surrounding area. September 2010.

Ashley Cooper / Pipes carrying steam to the steam turbines in Krafla geothermal power station. Krafla produces electricity as well as supplying hot water to heat buildings in the surrounding area. September 2010.

Ashley Cooper / Pipes carrying steam to the steam turbines in Krafla geothermal power station. Krafla produces electricity as well as supplying hot water to heat buildings in the surrounding area. September 2010.

Ashley Cooper / Hellisheidi geothermal power station in Hengill, Iceland. It also supplies hot water via a pipeline to Reykjavik for space heating for households and industry September 2010.

Ashley Cooper / Hellisheidi geothermal power station in Hengill, Iceland is the worlds second largest geothermal power station. It also supplies hot water via a pipeline to Reykjavik for space heating for households...

Ashley Cooper / Hellisheidi geothermal power station in Hengill, Iceland. It also supplies hot water via a pipeline to Reykjavik for space heating for households and industry September 2010.

Ashley Cooper / Hellisheidi geothermal power station in Hengill, Iceland. It also supplies hot water via a pipeline to Reykjavik for space heating for households and industry September 2010.

Ashley Cooper / Hellisheidi geothermal power station in Hengill, Iceland. It also supplies hot water via a pipeline to Reykjavik for space heating for households and industry September 2010.

Ashley Cooper / Bubbling mud pools in the geothermal area of Hverir near Myvatn, Northern Iceland. September.

Ashley Cooper / Hellisheidi geothermal power station in Hengill, Iceland. It also supplies hot water via a pipeline to Reykjavik for space heating for households and industry September 2010.

Ashley Cooper / Hellisheidi geothermal power station in Hengill, Iceland. It also supplies hot water via a pipeline to Reykjavik for space heating for households and industry September 2010.

Ashley Cooper / Hellisheidi geothermal power station in Hengill, Iceland. It also supplies hot water via a pipeline to Reykjavik for space heating for households and industry September 2010.

Ashley Cooper / A pipeline taking geothermally heated hot water from Hellisheidi geothermal power station in Hengill, to Reykjavik, Iceland. September 2010.

David Fleetham / Pahoehoe lava flowing from Kilauea entering the Pacific ocean near Kalapana, Big Island, Hawaii. February 2011.

David Fleetham / Pahoehoe lava flowing from Kilauea entering the Pacific ocean near Kalapana, Big Island, Hawaii. February 2011.

Doug Perrine / Palm trees in Leilani Community Park, silhouetted against the glow from fountaining lava at fissure 8, Kilauea Volcano, Leilani Estates subdivision, near Pahoa, Puna District, Hawaii. June 2018.

Doug Perrine / Fissure along the east rift zone of Kilauea Volcano, blasting lava bombs hundreds of meters into the air near a residence off Highway 132 between Pahoa and Kapoho in Puna District, Hawaii. The house w...

Doug Perrine / Lava from Kilauea Volcano erupts from fissures in Kapoho, shooting glowing lava bombs hundreds of meters into the sky and releasing clouds of poisonous gases. Puna District, near Pahoa, Hawaii. June 2...

Doug Perrine / Lava from Kilauea Volcano erupts from a fissure in Kapoho, Puna District, near Pahoa, Hawaii. June 2018.

Doug Perrine / Lava emanating from Pu'u O'o on Kilauea Volcano, glows from holes burned through Leilani Avenue, Leilani Estates, near Pahoa, Puna, Hawaii. June 2018.

Doug Perrine / River of lava entering the ocean at dusk. Ahalanui, Kapoho, Hawaii. This lava erupted from fissure 8 of the Kilauea Volcano, near Pahoa, Hawaii. June 2018.

Doug Perrine / Lava erupting from fissure 8 of the Kilauea Volcano, in Leilani Estates, near Pahoa, Hawaii. Here a river of lava flows through what was formerly a Papaya orchard in Kapoho, lower Puna District, Hawa...

Doug Perrine / 'Lava boat' or 'Lavaberg' (large chunk of partially hardened lava) floats down the lava river flowing through Kapoho, from Fissure 8 of the Kilauea Volcano, Puna District, Hawaii. June 2018.

Doug Perrine / 'Lava boat' or 'Lavaberg' (large chunk of partially hardened lava) floats down the lava river flowing through Kapoho, from Fissure 8 of the Kilauea Volcano, Puna District, Hawaii. June 2018.

Doug Perrine / Lava erupting from fissure 8 of the Kilauea Volcano, near Pahoa, flowing through what was formerly a papaya orchard in Kapoho, lower Puna District, Hawaii. June 2018.

Doug Perrine / River of lava erupting from fissure 8 of the Kilauea Volcano, near Pahoa, flowing through Kapoho, Puna District, Hawaii June 2018.

Doug Perrine / A'a lava flowing over land, where it has pushed down a house and set it on fire. The lava originated from Pu'u O'o, Kilauea Volcano, from a fissure in Leilani Estates, near Pahoa, Puna, Hawaii, USA....

Doug Perrine / A'a lava which originated from Pu'u O'o, Kilauea Volcano, from a fissure in Leilani Estates, near Pahoa, Puna, Hawaii, USA. June 2018.

Kirkendall-Spring / Lava glowing in the Halema'uma'u Crater viewed from the Jaggar Museum in Volcanoes National Park Hawaii. December 2016.

Kirkendall-Spring / Lava glowing in the Halema'uma'u Crater viewed from the Jaggar Museum in Volcanoes National Park, Hawaii. December 2016.

Kirkendall-Spring / Lava glowing in the Halema'uma'u Crater viewed from the Jaggar Museum in Volcanoes National Park, Hawaii. December 2016.

Kirkendall-Spring / Lava flowing into the Pacific Ocean from the East Riff Zone of the Kilauea Volcano, Hawaii. December 2016.