19-Mile Long Yellowstone Park Volcanic Pressure Bump Being Eyed

Scientists studying geothermal activity in Yellowstone National Park have once again discovered a recurring land anomaly. It's believed by many in the community that the park's supervolcano has caused ground bulging that measures nearly 20 miles near one of Yellowstone's calderas.

While 'uplifts' aren't uncommon inside Yellowstone National Park, this newest data regarding a deformation near Yellowstone Caldera's northern rim in northwest Wyoming has scientists once again paying particularly close attention, according to Popular Science.

This recurring land deformation is known as the 'Norris Uplift,' and has been tracked by park scientists for many years. This physical shift in land is caused by building magma beneath the ground. Extreme pressure is the result that ultimately causes a rise in land.

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A Nearly 20-Mile 'Uplift' In Land At Yellowstone National Park Has Some Talking Eruption

A Yellowstone National Park thermal spring Credit: Greg Jannetta

The park's three calderas were formed between an estimated 600,000 years to 2.1 million years ago, according to the National Park Service. The supervolcano's last major eruption happened over 620,000 years ago, according to Newsweek.

This massive uplift doesn't appear to have scientists worried about an imminent eruption. Yellowstone National Park expands into the states of Idaho, Wyoming (96%), and Montana.

Yellowstone National Park averages between 1,500 and 2,000 earthquakes a year, according to the United States Geological Survey (USGS). Most Yellowstone Park services will begin opening for the upcoming tourist season in May.

For a complete list of park operations for 2026, click here.

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Since marijuana is still illegal in Idaho, you can’t legally walk down the street and get high, but there's another way to get high around Twin Falls that is much more socially acceptable.

Gallery Credit: Credit Nate Bird