The sinkhole first appeared near a swamp between Bayou Corne and Grand Bayou Aug. 2-3.
Officials say it may be the result of a collapsed salt dome cavern deep underground.
Since its appearance, the sinkhole will periodically experience tremors and gas releases followed by edge collapses or slough-ins, The (Baton Rouge) Advocate reported Wednesday.
John Bordreaux, director of the parish Office of Homeland Security and Emergency Preparedness, said he was checking on the sinkhole Wednesday because of gas burps and tremors when the new collapse took place.
"I was just standing there and I pointed out, 'Hey, it looks like they're moving. It looks like they're moving," he said.
He caught the entire process on video.
The sinkhole is now roughly 25 acres across and is filled with water. Scientists said the growing process could take years before the sinkhole reaches its final shape and size.
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