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GREENE COUNTY, Mo. (KY3) – You may have heard or felt a starling boom on Monday morning, but it was not an explosion or an earthquake. It was a fighter jet breaking the sound barrier.

The Greene County Emergency Management Office confirmed a sonic boom happened around 11:40 a.m. from a Boeing test flight for the new F-15EX Strike Eagle. Many viewers as far as Branson said they felt the blast.

“After the sonic boom was heard and felt, in some cases, a lot of folks who didn’t know what it was called 911,” said Springfield-Greene County 911 Emergency Communications Department Director Kris Inman.

Inman saiddispatch received 77 calls within an eight minute time frame. He said around 100 total calls came in not long after the initial blast…