This guy was REALLY close; by the time I turned around he was still nearby; I doubt many civilians have heard a boom that close. Honestly he wasn't higher than 500 feet above the water either.
Were at the southern end of the Appalachians (N. GA). On clear days you can count on having jets blast just over the house. Last week we had a veritable air show - earlier in the morning two F-14s came by, wings forward, low and slow. Later two sets of F-16s came by, couldn't have been more than a few hundred feet up. Some days a guy in his private acrobatic plane practices over our valley. It is pretty cool here at times.
We heard (more than felt) the earthquake that hit northern AL last year. It scared the crap out of me. I had fallen asleep on the couch and when it hit I thought I woke up to the mother of all thunderstorms.