May have been the jet itself flying very low. The noise in downtown NYC the day of 9/11 when the first passenger plane flew over (right down 5th Avenue) at building top height was deafening.
“The noise in downtown NYC the day of 9/11 when the first passenger plane flew over (right down 5th Avenue) at building top height was deafening.”
That noise also had hundreds of square miles of glass to echo off of.