MAMMOTH, Wyoming – A light earthquake measuring 3.1 magnitude was recorded Saturday morning about 22 kilometers south-southwest of Mammoth, Wyoming, near the northern boundary of Yellowstone National Park. The quake struck around 8:04 a.m. local time at a depth of roughly 9 kilometers, according to the U.S. Geological Survey (USGS).
According to the agency, there were no immediate reports of shaking or damage from nearby communities. The region regularly experiences small earthquakes linked to ongoing geothermal and volcanic activity within the Yellowstone Caldera, one of the most closely monitored seismic zones in the country.
The tremor’s shallow depth could have made it briefly perceptible in isolated areas near the park’s northern entrances, though most residents likely did not feel it. Emergency officials report no disruptions to park operations, roads, or visitor facilities.
USGS scientists continue to track aftershocks and related seismic movement within the area. No further activity has been reported as of Saturday evening, but experts advise residents and visitors to remain aware of local updates in case of continued seismic unrest.
