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An earthquake has struck Yellowstone National Park just miles from an ancient supervolcano feared to be overdue for a catastrophic eruption.
The US Geological Survey detected a magnitude 3.3 quake at 9.20am ET Thursday morning right along the Yellowstone River inside the Wyoming park.
The minor quake's epicenter was recorded just seven miles from the Yellowstone caldera, the bowl-shaped volcanic depression within the famous national park.
Last year, scientists discovered tens of thousands of previously unrecorded earthquakes which could be hinting that Yellowstone's supervolcano is building up to an eruption.
An international research team used AI to listen to 15 years of Yellowstone recordings and discovered 86,000 tiny earthquakes that human experts had missed. That was about ten times the number of quakes researchers previously believed had taken place.
In the past three weeks, 11 minor quakes have been recorded by USGS in the area around the caldera.
Thursday's earthquake reportedly produced only light shaking in the 2.2 million acre park that spans across Wyoming, Montana and Idaho.
However, since the ancient site has not exploded in about 640,000 years, some experts and locals believe the volcano is overdue for an eruption that could potentially devastate the central US.
This is a breaking story. More details to follow.
A magnitude 3.3 earthquake has been detected just miles from the caldera of the Yellowstone supervolcano in Wyoming
In 2025, scientists detected thousands of previously unknown earthquakes under the supervolcano in Yellowstone (Pictured)
A dramatic uptick in seismic activity is often a sign that a volcano may soon erupt.
Multiple studies have concluded that earthquakes around Yellowstone have been driven by magma movement, hydrothermal activity and regional tectonic stresses in the Intermountain Seismic Belt - an 800-mile active fault region stretching through Nevada, Utah, Idaho, Wyoming and Montana.