It wasn't an earthquake that rattled windows and store shelves early, but residents across Southeast Georgia heard and felt something Thursday morning.
Reports came in to Channel 4's newsroom from Nahunta to Brunswick to Folkston about a loud noise and buildings shaking between 8:15 and 8:30 a.m.
The Georgia State Patrol says they received calls from Brantley, Camden, Glynn and McIntosh counties asking about the boom and rumble. A Brunswick police officer said he felt his house shake as he was getting ready to leave for work.
"Up at City Hall, they said they felt something shake," said Folkston resident Ericka Smith.
A Brantley County resident said the manager at Satilla Grocery reviewed surveillance video that showed the building shaking.
The U.S. Geological Survey said there was no indication of a earthquake in the area, but had hear reports of either a sonic boom or other event that cause the ground to rumble.
Naval Submarine Base Kings Bay said they were not conducting any operations that would have caused a sonic boom or explosion.
A Navy source says an F/A-18 Super Hornet was in the area at the time flying near the speed of sound, and when it reached the moist air near the coast could have caused a compression boom.
The Local Station's Vickie Pierre is in Georgia checking on reports of minor damage from the event. This story will be updated as more information becomes available.