Was it a supersonic aircraft?
A ground explosion?
The end of the world as we know it?
Those are the questions experts and non-experts around the world are asking themselves in recent weeks as curiously loud mystery BOOMS have not only been hear around the world, but felt – shaking buildings and rattling nerves from Alabama to Michigan, Idaho to California, Russia to Denmark.
The Alabama boom last Tuesday at 1:39 CST was heard and felt through 11 counties, but an earthquake event has been ruled out.