Emergency officials in Orange County are trying to figure out what caused a large boom heard around noon Thursday.
“Emergency Services have received reports of a short thunderous boom that was felt in the Hillsborough area,” Orange County officials said on social media.
“They have ruled out obvious causes (bombs, explosions, crashes, etc),” the county said. “It is possible that this may have been a small earthquake.”
The U.S. Geological Survey’s earthquake tracker showed no seismic activity in central North Carolina.
Spectrum News 1 meteorologists said an earthquake would sound more like a rumble than a boom.