[Ed. – We’ve been tracking these mystery booms here at Liberty Unyielding, so you don’t have to. This latest one is another instance in which the authorities have so far been unable to attribute it to a known supersonic aircraft or explosion of some kind. Note: the meteor shower in the feature image makes a nice visual, but NASA has been categorical that it was NOT a Leonid meteor. This website says mystery booms are increasing in frequency; we can’t vouch for that. But poring over them looks like an entertaining time-waster.]
NASA scientists in Huntsville, Ala., said Tuesday night that the origin of a mysterious boom that rocked central Alabama earlier Tuesday “remains unclear.” The evidence so far is pointing toward a large meteor or some kind of supersonic aircraft.
The sound was reported to multiple Birmingham area law enforcement agencies and to officials in Arab, Anniston, Hayden, Kimberly, Center Point, Jasper and Gardendale, among other places. …
1. Seismic data from the U.S. Geological Survey’s Lakeview Retreat near Centreville, Ala., show “a fairly loud boom occurring on or before 1:39 p.m. CST.”
2. The Elginfield Infrasound Array in southern Ontario 600 miles from north Alabama “picked up a matching infrasound signal beginning at 2:02 p.m. and lasting around 10 minutes.” NASA said the signal “could have been generated by a bolide, larger supersonic aircraft or a ground explosion.”