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Hawaiian Volcano Observatory

Observatory

SW Of Hilo On Hi 11 In Hawaii Volcanoes National Park, HI

Authorized by Congress in 1879, the US Geological Survey (USGS) Library is recognized as one of the world’s largest Earth and natural science …

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What gases are emitted by Kīlauea and other active volcanoes?

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Ninety-nine percent of the gas molecules emitted during a volcanic eruption are water vapor (H 2 O), carbon dioxide (CO 2 ), and sulfur...

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