Loud boom in North Louisiana has once again been recorded at approximately 4:27 pm on Oct. 13. The same boom had been noted last year in the northwest part of Louisiana also in the month of Oct. Conspiracy theories are now running rampant on the Web as to what could have caused the loud boom in North Louisiana.

Back on Oct. 12, 2012, a loud boom had occurred in NW Louisiana. According to reports by KLTV, Sheriff Gary Sexton of Webster Parish had definitely heard the loud boom. Natural gas facilities and manufacturing facilities for explosives had already been ruled out as the source of the loud boom. Theories included the possibility of a meteor having hit the ground causing the loud boom. After a year, another loud boom in North Louisiana has been reported.

The loud boom in North Louisiana had been described by witnesses as a "sonic boom" felt from Texas to Haughton, from Marshall to Keithville and North Shreveport. Posts on Facebook claim the loud boom in North Louisiana had caused the ground to shake.

Such "sonic boom" in North Louisiana had reportedly occurred at 4:27 pm, which prompted reports that the Calumet Plant had suffered an explosion. Yet, investigations at the plant found no source of explosion and the same goes for the plants in Cotton Valley and Shreveport.

Other likely sources for the loud boom in North Louisiana include the old Army Ammunition Plant and Camp Minden. Following investigations, both showed no signs of explosions having occurred in the area. The Barksdale Air Force Base had also been investigated but a spokesperson of the base claim no explosions had occurred.

The investigations continue with regards to the loud boom in North Louisiana. Could this "sonic boom" be somehow connected to the loud boom that occurred last year in the northwest part of Louisiana on the same month of Oct.?