A 3.9-magnitude earthquake struck in the mountains south of Heber Valley early Thursday morning, rattling much of Wasatch and Utah counties.

The earthquake occurred west of Independence at 12:11 a.m., 12 miles northwest of Strawberry Reservoir and had a depth of 13.8 kilometers, according to the University of Utah Seismograph Station.

No damage was reported as of Thursday morning, a Utah Geological Survey spokesperson said.

Adam Hiscock, an earthquake geologist with the Utah Geological Survey, said the shake was “pretty widely felt” throughout the area.

“There’s lots of reports all through Spanish Fork, all the way up through Provo and then even in the Salt Lake Valley and up by Park City and Heber,” Hiscock said. “So it could just be because of the ground motions maybe were amplified by the bedrock in that area, which means they were more widely felt across the area, even though it was a small earthquake.”

The epicenter came inside a hotbed for small earthquakes. According to Utah’s seismograph station, this was the 58th earthquake of at least a magnitude 2 to hit inside a 15-mile radius of the area since 1981. Thursday’s quake was also the largest to strike the area in that time span, surpassing a 3.6-magnitude earthquake in 2021.

Hiscock called the location “a little weird,” because it’s not along the Wasatch Fault but acknowledged earthquakes happen frequently there.

“There is a small cluster of seismicity, is what we would call it, in that area,” Hiscock said. “Likely it’s just a subsidiary fault to the Wasatch that’s just a little further east, but it’s hard to say for sure.”

Earthquakes of this magnitude are common throughout the state, Hiscock added.

Last year 3.9- and 4.4-magnitude earthquakes struck Tremonton, he said, and a 4.5-magnitude earthquake occurred near Brian Head in southern Utah last summer.

“There’s often earthquakes around this size in Utah because it is earthquake country,” Hiscock said. “All across the state we live there’s fault lines everywhere. So it’s pretty common to get these sizes of earthquakes, a few a year, I would say.”

Several Utah County residents who noticed the quake Thursday morning took to social media to react.

“I just felt an earthquake in Provo, UT a few minutes ago,” X user Dan Fairbanks said.

“Earthquake felt at 12:12 a.m. on May 1, 2025 in Pleasant Grove, Utah. Anyone else feel it?” added Jakiah Nauman via X.

Another X user, Nathan Cannon, said he felt the quake from Orem.

“Just felt an earthquake … I Think. Or someone jumped upstairs really loudly,” he said.