Residents in the South Carolina Midlands experienced a startling event Thursday evening when a powerful rumble shook the area. Initially feared to be an earthquake, the U.S. Geological Survey later identified the event as a sonic boom. The incident, which occurred just before 5:30 p.m., was reported by hundreds of residents from areas including Irmo, Sumter, and Florence. Many described the sound as a loud ‘boom’ that shook their roofs, with recordings showing cameras jolting from the force.

Investigations and Unanswered Questions

Despite the widespread reports, the cause of the sonic boom remains a mystery. The South Carolina Emergency Management Agency, the American Meteor Society, and NASA were contacted, but none could provide a definitive explanation. The U.S. Geological Survey, which confirmed the sonic boom, noted that their equipment is not designed to measure such events, assigning it a magnitude of 0.0.

Sonic booms occur when an object travels faster than the speed of sound, creating shock waves. The U.S. Air Force states that the speed of sound is about 750 miles per hour at sea level. South Carolina is home to several military installations, including Fort Jackson and Shaw Air Force Base, which houses the 20th Fighter Wing, a group of F-16 fighter jets capable of breaking the sound barrier.

Military Presence and Speculation

Given the state’s military presence, some speculate that the boom could be related to military activities. However, no official confirmation has been provided. The 20th Fighter Wing at Shaw Air Force Base is the largest combat-ready group of F-16 jets in the Air Force, and these jets can exceed Mach 2, or twice the speed of sound.

As residents await answers, the incident serves as a reminder of the powerful forces at play in our skies. While sonic booms are not uncommon near military bases, the lack of immediate explanation has left many South Carolinians curious and concerned.

Original reporting: WQAD (Quad Cities) — read the source article.