Splashes of sulphur colouring Stefanos crater ground, Nisyros Island, Dodecanese Islands, Greek Islands, Greece, Europe

Glowing active 700m wide volcanic crater of Volcan Telica with lava vents far below, in the North West volcanic chain, Leon, Nicaragua, Central America

Food being cooked on volcanic grill at visitor centre, Parque Nacional de Timanfaya, national park, Lanzarote, Canary Islands, Atlantic, Europe

Steam vent at Namaskard geothermal area (Namafjall-Hverarond), Mount Burfell, 935m, behind, near Lake Myvatn and Reykjahlid, North Iceland, Iceland, Polar Regions

Fumaroles (steam vents) in Porcelain Basin, Norris Geyser Basin, Yellowstone National Park, UNESCO World Heritage Site, Wyoming, United States of America, North America

Steam emitted from the New York Steam System, dating back to 1882 providing steam to heat, cool or disinfect around 1,700 buildings, New York, United States of America, North America

Mineral deposits from geothermal steam vents at Te Puia, Gisborne District, North Island, New Zealand, Pacific

Geyser and steam vents at Te Puia, Gisborne District, North Island, New Zealand, Pacific

Main crater of Masaya Volcano caldera, Nicaragua's first national park, its vent is usually shrouded in smoke, Masaya, Nicaragua, Central America

Geothermal steam vents, Iceland, Polar Regions

Full Moon Over Halemaumau Crater Within The Much Larger Summit Caldera Of Kilauea In Hawaii Volcanoes National Park, Steaming Vents In Foreground, Mauna Loa Mountain In Background, Island Of Hawaii, Hawaii, United States Of America

Volcanic Activity

Hawaii, Big Island, Hawaii Volcanoes National Park, lava flows into forest burning trees

Hawaii, Big Island, Hawaii Volcanoes National Park, Mauna Loa eruption, lava flowing, steam rising.

Hawaii, Big Island, Hawaii Volcanoes National Park, Kilauea, Pu'u O'o eruption, fountaining action

Hawaii, Big Island, Hawaii Volcanoes National Park, Molten lava seen through hole in lava tube.

Hawaii, Big Island, Hawaii Volcanoes National Park, Pu'u O vent rift eruption, burned trees

Hawaii, Big Island, Hawaii Volcanoes National Park, Volcanic eruption, Kilauea

Hawaii, Big Island, Hawaii Volcanoes National Park, Kilauea, Pu'u O'o eruption, close-up fountaining action

Hawaii, Big Island, Hawaii Volcanoes National Park, close-up of lava flow into sea