KPLC investigating boom heard from Sulphur to South Lake Charles

What caused the loud boom Wednesday night?
Published: Feb. 27, 2014 at 5:55 PM CST
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SULPHUR, LA (KPLC) - KPLC is investigating the loud explosion heard from Sulphur to South Lake Charles around 9:25 p.m. Wednesday night.

Authorities checked out Superior Supply & Steel at 318 S. Cities Service Highway in Sulphur but said they were no issues to report. Multiple commentors on the KPLC Facebook page and callers to KPLC newsroom said authorities also searched an empty field near the business.

Multiple Facebook commentors claimed that the boom was the result of Tannerite, a brand name of explosive compound used for firearm practice. A similar incident occurred off of Houston River Road in late December. Our story can be read HERE or by going to

The explosive, which is legal in the United States, is sold as two inert powders which must be mixed. The resulting compound is not flammable and can only be detonated by a high-velocity impact, like a bullet fired from a rifle.

Sulphur Police told KPLC they too heard the explosion but had nothing specific to report Wednesday. We are speaking with officials today about their investigation.

Sgt. James Anderson, spokesman from Troop D, said state police were not called to the scene Wednesday night and the only possible violations for using the explosive compound would be noise violations or if there was any property damage.

If you were affected by the incident Wednesday night or know something about it, please call the KPLC newsroom at 337-437-7568 or email us at

KPLC Facebook viewers form Maplewood, Carlyss, Westlake, Moss Bluff, DeRidder, LeBleu Settlement, Grand Lake, Iowa, Ragley and Vinton said they also heard the explosion.

KPLC's Erica Bivens will have more on this story on later editions.

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