(The Center Square) – Residents of Central Illinois were stunned Tuesday morning by a mysterious boom in the area, prompting residents to call the local officials.
At about 11:20 a.m., the Illinois Emergency Management Agency was alerted about a loud noise and shaking reported by residents in the area.
After talking with state, federal and local officials, investigators determined the cause of the boom was an F-15 fighter jet breaking the sound barrier and creating a sonic boom.
A sonic boom is a sound associated with shock waves created when an object travels through the air faster than the speed of sound, creating a boom similar to an explosion.
No damage or injuries were reported.