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Steam plume from active vent beside crater lake, Volcan Poas, Cordillera Central, Costa Rica, Central America
View of active volcano from helicopter, Big Island, Hawaii, Hawaiian Islands, United States of America (U.S.A.), North America
Aerial of a tuquoise crater lake on top of Mount Ruapehu, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Ski cottage on Mount Ruapehu, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Hill town with backdrop of snowy volcano Mount Etna, Gangi, Palermo Province, Sicily, Italy, Mediterranean, Europe
Hill town with backdrop of snowy volcano Mount Etna, Gangi, Palermo Province, Sicily, Italy, Mediterranean, Europe
Hikers from the cablecar near the smoking summit of 3350m volcano Mount Etna during an active phase, Mount Etna, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Ash, rock and sulphur at the smoking summit of 3350m high volcano Mount Etna during an active phase, Mount Etna, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe
Agave succulent plant and active volcano 3350m Mount Etna seen at this northeast tourist town, Taormina, Catania Province, Sicily, Italy, Mediterranean, Europe
Sulphur crystals on fumarole at Papandayan Volcano an active four crater caldera, Garut, West Java, Java, Indonesia, Southeast Asia, Asia
Sulphur encrusted fumarole at Papandayan Volcano, an active four crater caldera, Garut, West Java, Java, Indonesia, Southeast Asia, Asia
Green crater lake and steaming fumaroles at Papandayan Volcano, an active four cratered caldera, Garut, West Java, Java, Indonesia, Southeast Asia, Asia
Mineral stained pond on collapsed flank of Papandayan Volcano, an active four crater caldera, Garut, West Java, Java, Indonesia, Southeast Asia, Asia
Glowing active volcanic crater of Volcan Telica on a starry night, with the Milky Way, Orion and the Pleiades, Leon, Nicaragua, Central America
Smoke rises from the active crater of Tungurahua Volcano that threatens the nearby town of Banos, Ambato Province, Central Highlands, Ecuador, South America
Aerial view of Mount Nyiragongo, an active volcano in the Virunga Mountains in Virunga National Park, near the border with Rwanda, known for its recent devastating eruptions, Democratic Republic of the Congo, Great Rift Valley, Africa
Aerial view of Mount Nyiragongo, an active volcano in the Virunga Mountains in Virunga National Park, near the border with Rwanda, known for its recent devastating eruptions, Democratic Republic of the Congo, Great Rift Valley, Africa
Aerial view of Mount Nyiragongo, an active volcano in the Virunga Mountains in Virunga National Park, near the border with Rwanda, known for its recent devastating eruptions, Democratic Republic of the Congo, Great Rift Valley, Africa
Group of hikers walking up to Mount Etna summit, UNESCO World Heritage Site, Etna, Sicily, Italy, Mediterranean, Europe
Farm buildings and green fields with the ash plume of the Eyjafjallajokull eruption in the distance, near Hella, southern area, Iceland, Polar Regions
Acid Crater Lake, White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
limbers on the glacier of Volcan Cotopaxi, at 5897m the highest active volcano in the world, Ecuador, South America
Mount Bromo (Gunung Bromo), an active volcano, erupting at sunrise throwing up ash clouds, East Java, Indonesia, Southeast Asia, Asia
Mount Ruapehu, Ngauruhoe and Tongariro (active volcanoes) from Lake Taupo, North Island, New Zealand, Pacific
Glowing active volcanic crater of Volcan Telica at night with star trails and shooting star (meteor) on right, Leon, Nicaragua, Central America
Sunrise over the smoking Gunung Bromo volcano, Bromo-Tengger-Semeru National Park, Java, Indonesia, Southeast Asia, Asia
Active Gunung Bromo volcano at night, Bromo-Tengger-Semeru National Park, Java, Indonesia, Southeast Asia, Asia
The very active lava lake of Mount Nyiragongo, Virunga National Park, UNESCO World Heritage Site, Democratic Republic of the Congo, Africa
Tourists walking through lava field around the very active Erta Ale shield volcano, Danakil depression, Ethiopia, Africa
Sulphur encrusted fumaroles at Papandayan Volcano, an active four crater caldera, Garut, West Java, Java, Indonesia, Southeast Asia, Asia
Glowing active 700m wide volcanic crater of Volcan Telica with lava vents far below, in the North West volcanic chain, Leon, Nicaragua, Central America
Summit of active Volcan San Cristobal, 1745m, in the North West volcano chain, the country's highest volcano, Chinandega, Nicaragua, Central America
Boiling mud at an active andesite stratovolcano on White Island, off the east side of North Island, New Zealand, Pacific
Aerial of Mount Ngauruhoe, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Smoking 700m wide crater of Volcan Telica in the North West volcano chain, one of the country's most active volcanoes, Leon, Nicaragua, Central America
Aerial view of Mount Nyiragongo, an active volcano in the Virunga Mountains in Virunga National Park, near the border with Rwanda, known for its recent devastating eruptions, Democratic Republic of the Congo, Great Rift Valley, Africa
Climber looking at sunrise on Volcan Cotopaxi, 5897m, highest active volcano in the world, Ecuador, South America
Woman on Mount Ruapehu looking towards Mount Ngauruhoe, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
An active andesite stratovolcano on White Island, off the east side of North Island, New Zealand, Pacific
Japanese warning sign on the crater rim of Mount Naka active volcano, Mount Aso, Kyushu, Japan, Asia
Ski cottage on Mount Ruapehu, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Hikers enjoy the view on the verdant slopes of the active Tungurahua Volcano that threatens the nearby town of Banos, Ambato Province, Central Highlands, Ecuador, South America
Aerial view of Mount Nyiragongo, an active volcano in the Virunga Mountains in Virunga National Park, near the border with Rwanda, known for its recent devastating eruptions, Democratic Republic of the Congo, Great Rift Valley, Africa
Fumaroles on collapsed side of Papandayan Volcano, an active four crater caldera, Garut, West Java, Java, Indonesia, Southeast Asia, Asia
Looking from Taormina towards Trupiano and the smoking 3350m high volcano of Mount Etna during an active phase, Trupiano, Sicily, Italy, Mediterranean, Europe
View from Mount Ruapehu of Mount Ngauruhoe with a ski cottage in the foreground, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Sulphur encrusted fumaroles at Papandayan Volcano, an active four crater caldera, Garut, West Java, Java, Indonesia, Southeast Asia, Asia
Sunrise over the smoking Gunung Bromo volcano, Bromo-Tengger-Semeru National Park, Java, Indonesia, Southeast Asia, Asia
Fields north of Leon and Volcan Telica, one of the country's most active volcanoes, in the North West volcanic chain, Leon, Nicaragua, Central America
Fields north of Leon and Volcan Telica, one of the country's most active volcanoes, in the North West volcanic chain, Leon, Nicaragua, Central America
Visitors to an active andesite stratovolcano on White Island, off the East side of North Island, New Zealand, Pacific
Landscape covered in volcanic ash and dust with the ash plume of the Eyjafjallajokull eruption in the distance, southern area, Iceland, Polar Regions
Summit of 1745m active Volcan San Cristobal on left, the country's highest volcano, and Volcan Casita on the right, Chinandega, Nicaragua, Central America
Active Gunung Bromo volcano at night, Bromo-Tengger-Semeru National Park, Java, Indonesia, Southeast Asia, Asia
Road leading to Mount Ngauruhoe, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
Mud being ejected from the caldera floor of an active andesite stratovolcano on White Island, North Island, New Zealand, Pacific
Tourists exploring White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Mud being ejected from the caldera floor of an active andesite stratovolcano on White Island, North Island, New Zealand, Pacific
An active andesite stratovolcano on White Island, off the east side of North Island, New Zealand, Pacific
Mount Rinjani caldera, Segara Anak lake and the active volcano, Gunung Baru, Lombok, Indonesia, Southeast Asia, Asia
Tourists exploring White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Visitors watching mud being ejected from the caldera floor of an active andesite stratovolcano on White Island, North Island, New Zealand, Pacific
An active andesite stratovolcano on White Island, off the east side of North Island, New Zealand, Pacific
Acid Crater Lake, White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Aerial of the crater of Mount Ngauruhoe, Tongariro National Park, UNESCO World Heritage Site, North Island, New Zealand, Pacific
The caldera floor of an active andesite stratovolcano on White Island, North Island, New Zealand, Pacific
Tourist exploring White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Tourists exploring White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Tourists exploring White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific
Acid Crater Lake, White Island Volcano, an active volcano in the Bay of Plenty, North Island, New Zealand, Pacific