Volcanoes are a natural way for the Earth and other planets to cool themselves. The interiors of planets are extremely hot, and when a volcanic eruption occurs, heat from within is released. This results in the expulsion of lava and gases, leading to volcanic eruptions. Some volcanoes are only active for a short period of time, while others can remain active for hundreds of thousands or even millions of years.
During an eruption, the temperature of the lava reaches around 1,200 degrees Celsius. This temperature can vary depending on the composition of the soil and rock.
Due to the heat from within, in some locations, the heat melts rocks into a liquid state known as magma. Volcanoes erupt due to pressure. The more fluid the magma, the easier it is for it to bubble and rise to the surface, forming gas bubbles. The greater the pressure of the gas, the higher the magma erupts into the atmosphere.
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Big Island Volcano Park |
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Curtain of Fire, August 1971 |
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Diminishing Fountain at End of Phase, 1986 |
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High Fountain at Kilauea Iki, 1959 |
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Flow from a Fissure, Kilauea Lki, 1959 |
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Halemaumau Crater, 1961 |
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Halemaumau Crater, November 1967 |
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Kava Tree Formation Fast Rift, 1969 |
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Kilauea Spatter Cone, 1984 |
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Lava Cascade into Alae Crater, 1969 |
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Lava Fountain and Puu Oo Vent, 1986 |
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Lava Pond at Summit of Shield C-48 |
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Lava Wells from Opening in Tube, 1986 |
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Mauna Loa Lava River, 1984 |
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Mauna Loa Flow Front, 1984 |
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Mauna Loa Lava Tube, 1984 |
(To be continued)