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How many gallons of water does Old Faithful erupt?

Water - Old Faithful Virtual Visitor Center. Old Faithful Geyser expels 3,700 to 8,400 gallons of water each time it erupts. During eruptions, the water in Old Faithful shoots from 106 to more than 180 feet (32-55 m) high.



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If you've ever visited Old Faithful and the other geysers at Yellowstone National Park, you've likely come away with two reactions. First, it's one of the most captivating sights in all of nature. Second, the place stinks like rotting eggs.

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The eruption would entail more than dangerous lava flows and could be expected to kill as many as 90,000 people immediately and spread a 10-foot (3-meter) layer of molten ash as far as 1,000 miles (1,609 kilometers) from the park. Rescuers probably would have a tough time getting in there.

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Despite its lack of regularity, Park Rangers and scientists have figured out how to create a fairly realistic Old Faithful schedule. Every prediction depends on the length and amount of water in the last eruption, so they can only be predicted after the geyser erupts.

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However, Yellowstone is also an active geothermal area with hot springs emerging at ~92°C (~198°F) (the boiling point of water at Yellowstone's mean altitude) and steam vents reported as high as 135°C (275°F).

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Just like the animals in the park, the geyser basins won't stop with the weather. Geyser basins are a never-ending wonder, even in the rain; Old Faithful will still spectacularly erupt and hot springs will still be vibrant despite weather conditions.

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In 2019, a man fell into thermal water near the cone of Old Faithful and suffered severe burns. Two years prior, a man sustained severe burns after falling in a hot spring in the Lower Geyser Basin. In 2016, a man left the boardwalk and died after slipping into a hot spring in Norris Geyser Basin.

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A 19-year-old was badly burned from an iconic geyser in Yellowstone National Park, officials said. Park rangers helped the woman at Old Faithful on Thursday. She had second- and third-degree burns over 5% of her body, park rangers said.

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The report of Yellowstone National Park addresses the following threats: (i) mining activities outside the Park; (b) brucellosis infection of the bison population; (c) lake trout invasion; (d) impacts on water quality; (e) road construction; and (f) regulation of visitor use of the site.

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