How many times has Old Faithful erupted?

More than 1,000,000 eruptions have been recorded. Harry Woodward first described a mathematical relationship between the duration and intervals of the eruptions in 1938. Old Faithful is not the tallest or largest geyser in the park; those titles belong to the less predictable Steamboat Geyser.



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Indeed, periods of decreased precipitation have been shown in modern times to result in less frequent eruptions of Old Faithful, and the new research indicates that severe, long-duration droughts can terminate eruptions. For now, Old Faithful remains just that—faithful, with eruptions occurring about every 90 minutes.

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This may have been a bit of an exaggeration, but geysers do emit a bit of a stench due to the elevated levels of sulfuric acid and hydrogen sulfide gas contained within the geysers themselves.

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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 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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By locating these tremor signals, the fluid pathway of Old Faithful geyser down to a depth of ~260 feet (80 meters) is illuminated.

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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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A: For the most likely type of volcanic eruption in Yellowstone, everywhere would be safe except in the immediate vicinity of the advancing lava flow. In the highly improbable event of a large catastrophic eruption, the great the distance from the eruptive center, the safer it would be.

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When the Yellowstone hot spot next has an eruptive event, most likely no part Texas will be affected. This is because a smaller eruption is expected by geophysicists well before a major one.

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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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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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