It wasn't a jet or even an after burner. The only way I can really explain it is this.... have u ever been to see the fire works on the fourth of july and been right under where they were being launched from.... you hear a small boom then like a hisss. Then you hear boom boom. When it explodes you feel that deep pressure on your ears, makes your ears hurt and almost makes your eyes roll around, lol. You can feel it in your body in your feet, etc... I know it was felt and heard as far south as frisco, nc for a fact.