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Laguna Verde with mineral flat margin and Volcan Licancabur, 5960m, Southwest Highlands, Bolivia, South America
View across city from El Alto, with Illimani volcano in distance, La Paz, Bolivia, South America
Vicuna grazing on altiplano desert, with El Misti volcano behind, near Arequipa, Peru, South America
Smoke billowing out from volcano vent, Sulphur Lake, Kawah Ijen, Ijen Plateau, island of Java, Indonesia, Southeast Asia, Asia
Tourists trekking, Sulphur Lake, Kawah Ijen, Ijen Plateau, island of Java, Indonesia, Southeast Asia, Asia
Fissure vent with spatter cones, Laki Volcano, Iceland, Polar Regions
View of Parque Nacional de la Caldera de Taburiente from Pico de las Nieves, La Palma, Canary Islands, Spain, Atlantic, Europe
Fumaroles on the crater edge, island of Vulcano, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
One of three crater lakes at the summit of Kelimutu volcano near Moni, soil chemical creates the unusual colours, island of Flores, Indonesia, Southeast Asia, Asia
View east along crater rim from Orongo ceremonial village of the Rano Kau crater, Easter Island, Chile, Pacific, South America
The Pu'u O'o cinder cone, the active vent on the southern flank of the Kilauea volcano, UNESCO World Heritage Site, Big Island, Hawaiian Islands, United States of America, North America
The Pu'u O'o cinder cone, the active vent on the southern flank of the Kilauea volcano, UNESCO World Heritage Site, Big Island, Hawaiian Islands, United States of America, North America
Versuvius Volcano seen from Pompeii, buried in AD79 eruption, Renovated stonework of a building on the edge of the Roman Forum, Pompeii, UNESCO World Heritage Site, Campania, Italy, Europe
Mount Osorno, a volcano in Vicente Rosales National Park, Lake District, Chile, South America
The geothermal Krafla Power Station, largest geothermal power station in Iceland, located near the Krafla Volcano, Iceland, Polar Regions
600 metre zip line at the top of the Sky Tram at Arenal Volcano, Costa Rica, Central America
Tabacon Hot Springs, volcanic hot springs fed from the Arenal Volcano, Arenal, Costa Rica, Central America
Tabacon Hot Springs, volcanic hot springs fed from the Arenal Volcano, Arenal, Costa Rica, Central America
Tabacon Hot Springs, volcanic hot springs fed from the Arenal Volcano, Arenal, Costa Rica, Central America
Rincon de la Vieja National Park at foot of Rincon Volcano, Guanacaste, Costa Rica, Central America
Skylight, view through cooled lava to molten lava below, with plumes of steam as lava reaches the sea beyond, Kilauea Volcano, Hawaii Volcanoes National Park, UNESCO World Heritage Site, Island of Hawaii (Big Island', Hawaii, United States of America, North America
Mount Mayon, 2462 m, near-perfect volcano cone with plume of smoke reflected in rice field, Bicol Province, southeast Luzon, Philippines, Southeast Asia, Asia
Taal volcano, crater lake, Lake Taal, Luzon, Philippines, Southeast Asia, Asia
Mount Mayon, 2462 m, near-perfect volcano cone with plume of smoke, Bicol Province, southeast Luzon, Philippines, Southeast Asia, Asia
Oldonyo Lengai volcano, 2878m, Ngorongoro Conservation Area, UNESCO World Heritage Site, Tanzania, East Africa, Africa
Solidified lava flows, El Misti volcano, 5821m, Arequipa, Peru, South America
Sunrise on Mount Fuji from Lake Kawaguchi, Yamanashi Prefecture, Japan, Asia
View from San Jorge of Conception Volcano, Ometepe Island, Nicaragua, Central America
Tourist walks round Masaya crater, Santiago crater, Park National Volcan Masaya, Masaya, Nicaragua, Central America
Turquoise waters and volcano, Isla de los Lobos, Fuerteventura, Canary Islands, Spain, Atlantic, Europe
Arenal volcano, La Fortuna, Costa Rica, Central America
Arenal volcano, La Fortuna, Costa Rica, Central America
St. Pierre Bay, with Mont Pelee behind, scene of 1902 volcanic disaster, which killed 30,000 people, Martinique, Windward Islands, West Indies, Caribbean, Central America
Tour boat near Panajachel, San Pedro Volcano in the background, Lake Atitlan, Guatemala, Central America
Mount Krakatindur, 858 m, standing solitary in the Nyjahraun lava field, east of Hekla volcano in the distance, Fjallabak route north (Nyrdri-Fjallaback) in the interior, Iceland, Polar Regions
Crater lake of Volcan Santa Ana, 2365m, Parque Nacional Los Volcanes, El Salvador, Central America
Harbour below Volcan Concepcion, 1610m, Ometepe Island, Lake Nicaragua, Nicaragua, Central America
Tourists bathing in mud bath, Volcan de Lodo El Totumo, Mud Volcano, Colombia, South America
Lake Atitlan, Western Highlands, Guatemala, Central America
Santa Cruz La Laguna, Lake Atitlan, Western Highlands, Guatemala, Central America
Santa Cruz La Laguna, Lake Atitlan, Western Highlands, Guatemala, Central America
Lake Atitlan, Western Highlands, Guatemala, Central America
Dromedary ride on slopes of Timanfaya mountain, Timanfaya National Park, Lanzarote, Canary Islands, Spain, Europe
Local girl with typical scar near, Volcano Yasur, Island of Tanna, Vanuatu, South Pacific, Pacific
Sulphur carriers climbing out of Kawah Ijen volcano (Ijen crater), Banyuwangi, East Java, Indonesia, Southeast Asia, Asia
Sulphur carriers climbing out of Kawah Ijen volcano (Ijen crater), Banyuwangi, East Java, Indonesia, Southeast Asia, Asia
Hakone Ropeway over the volcanic cauldron, Owakudani, Hakone, Tokyo, Japan, Asia
Man boiling Megapode eggs in a sulphur stream of Volcano Tavurvur, Rabaul, East New Britain, Papua New Guinea, Pacific
Colourful springs of acid in Dallol, hottest place on earth, Danakil depression, Ethiopia, Africa
Sulphur miner of Ijen volcano, Eastern Java, Indonesia, Southeast Asia, Asia
Sulphur miner of Ijen volcano, Eastern Java, Indonesia, Southeast Asia, Asia
Volcano House, Cesar Manrique Foundation, Tahiche, Lanzarote, Canary Islands, Spain, Atlantic, Europe
The Temple of Mount Popa, the core of an extinct volcano and abode of Myanmar's most powerful nats (gods), Mount Popa, Myanmar (Burma), Asia
Steam plumes from hot lava flowing onto beach and into the ocean, Kilauea Volcano, Hawaii Volcanoes National Park, UNESCO World Heritage Site, Island of Hawaii (Big Island), Hawaii, United States of America, North America
The geothermal Krafla Power Station, largest geothermal power station in Iceland, located near the Krafla Volcano, Iceland, Polar Regions
Waterfall beneath Mount Mayon, 2462m, a volcanic cone with plume of smoke, Bicol Province, southeast Luzon, Philippines, Southeast Asia, Asia
Eruption of Gunung Merapi, a highly active volcano near Yogyakarta, Java, Indonesia, Southeast Asia, Asia
Lake Atitlan from Lomas de Tzununa Hotel with San Pedro Volcano in the background, Guatemala, Central America
Mirador de la Cruz, Antigua, Guatemala, Central America
Horsemen and horses on the banks of Mount Bromo volcano, Eastern Java, Indonesia, Southeast Asia, Asia
The main square of Granada with view to the Mombacho Volcano in the background, Granada, Nicaragua, Central America
Silverswords, a plant unique to Hawaii which flowers once then dies, growing in vast crater of Haleakala, the world's largest dormant volcano, Maui, Hawaii, Hawaiian Islands, United States of America (U.S.A.), North America
Aerial view of La Graciosa Island volcanoes from El Mirador del Rio, Lanzarote, Canary Islands, Spain, Atlantic, Europe
The Pu'u O'o cinder cone, the active vent on the southern flank of the Kilauea volcano, Big Island, Hawaii, Hawaiian Islands, United States of America, North America
Edinburgh settlement and the 1961 volcanic cone, Tristan da Cunha, Mid Atlantic
Public bus in front of the Avachinskaya Sopka volcano near Petropavlovsk-Kamchatsky, Kamchatka, Russia, Eurasia
Mount Fuji (3776m), ropeway, cable car, Hakone, Honshu Island, Japan, Asia
Plumes of steam where the lava reaches the sea, Kilauea Volcano, Hawaii Volcanoes National Park, UNESCO World Heritage Site, Island of Hawaii (Big Island), Hawaii, United States of America, Pacific, North America
Agricultural land at the foot of the mighty volcano Hekla, north of Hella, in the south of Iceland (Sudurland), Iceland, Polar Regions
Tourists bathing in mud bath, Volcan de Lodo El Totumo, Mud Volcano, Colombia, South America
Eruption of highly active Volcan Pacaya, a popular tourist sight south of Guatemala City, Guatemala, Central America
Perfect example of strato-volcano, island cone left by subsidence, Crater Lake, Oregon, United States of America (U.S.A.), North America
Fissure vent with spatter cones, Laki Volcano, Iceland, Polar Regions
Arenal Volcano from La Fortuna side, Costa Rica, Central America
Tourists by green crater lake and fumaroles at Papandayan Volcano, an active four crater caldera, Garut, West Java, Java, Indonesia, Southeast Asia, Asia
Volcano in the Virunga Mountains in the Congo, Rwanda, Africa
Santiago Crater, Park National Volcan Masaya, Masaya, Nicaragua, Central America
Workers in the sulphur mine of the Ijen Volcano, Java, Indonesia, Southeast Asia, Asia
Rincon Volcano from the Hacienda Guachipelin, near Rincon de la Vieja National Park, Guanacaste, Costa Rica, Central America
Coffee plantations on the slopes of the Poas Volcano, near San Jose, Costa Rica, Central America
Santa Cruz La Laguna, Lake Atitlan, Western Highlands, Guatemala, Central America
View across the rim of the dormant San Fernando crater of the Volcan Masaya in the Volcan Masay National Park, Nicaragua, Central America
Cooled lava from recent eruption, Kilauea Volcano, Hawaii Volcanoes National Park, UNESCO World Heritage Site, Island of Hawaii (Big Island), Hawaii, United States of America, North America
Taal Volcano, Lake Taal, Talisay, Luzon, Philippines, Southeast Asia, Asia
Late winter hikers on Tongariro crossing, Mount Ngauruhoe and South Crater, Taupo, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Isla Margarita, Venezuela, South America
The crater on Vulcano, Aeolian Islands, UNESCO World Heritage Site, island of Sicily, Italy, Mediterranean, Europe
Mount Ngauruhoe, 2287m, and Red Crater on the Tongariro Crossing, Tongariro National Park, the oldest national park in the country, UNESCO World Heritage Site, Taupo Volcanic Zone, North Island, New Zealand, Pacific
Miner on the crater rim of 2400m volcano of Gunung Ijen in east Java, Indonesia, Southeast Asia, Asia
Volcano, Lake Atitlan, Atitlan, Guatemala, Central America
Lake Atitlan, Western Highlands, Guatemala, Central America
View across city from El Alto, with Illimani volcano in distance, La Paz, Bolivia, South America
Solidified lava flows, El Misti volcano, 5821m, Arequipa, Peru, South America
Volcano House, Cesar Manrique Foundation, Tahiche, Lanzarote, Canary Islands, Spain, Atlantic, Europe
Part of the vast crater of 10023 ft Haleakala, the world's largest dormant volcano, seen from Sliding Sands trail, Maui, Hawaii, Hawaiian Islands, United States of America (U.S.A.), North America
Laguna Verde with mineral flat margin and Volcan Licancabur, 5960m, Southwest Highlands, Bolivia, South America
Coffee plantations on the slopes of the Poas Volcano, near San Jose, Costa Rica, Central America
Guides dipping twigs in molten sulphur at fumaroles in Papandayan Volcano, Garut, W Java, Java, Indonesia, Southeast Asia, Asia
Irazu volcano, Irazu Volcano National Park, Cartago Province, Costa Rica, Central America
Licancabur volcano, San Pedro de Atacama, Chile, South America