I don't know if this is published widely, but here is some interesting
information in the local Dallas paper.
I thought the sound was different, but similar to the old sonic booms
when I heard it...
The local college here (SMU) has special low frequency listening devices
("infrasound detectors") near Big Bend National Park (hundreds of miles
from Dallas!) and they say that what they picked up were real explosions
and not a sonic boom, in fact there were three large explosions and 4
smaller ones that lasted for over 10 minutes. They have all the sensor
readings and traced the sound to the Dallas area. It even picks up
meteorites entering the atmosphere, animals, etc. And it picked up some
kind of atmospheric turbulence before the first explosion. They are
trying to do cals to figure out the true size of the blasts.....


Marc Wiese