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"Domino Effect" At The Giant Louisiana Sinkhole - "Shifting Salt" Caused Major Amount Of Seismic Activity Near Giant Sinkhole "Indicating Something Might Be Failing In The Salt Structure," And Officials Are Extremely Worried About Stability Of Rest Of The Salt Dome Because Failed Cavern May Affect Other Caverns!
Officials first began noticing an increase in seismic activity about two weeks ago
Scientists reported that more than 80 seismic events were monitored two days ago
“There was a tremendous amount of activity over the past couple of days”
The seismic activity has been pinpointed to shifting salt deposits just east of the failed cavern, about 900 feet into the ground
Concern to parish officials because it indicates that something might be failing in the salt structure “We would assume that in order to create seismic activity, it’s something shifting … in the salt” “Not knowing what that may cause is concerning”
Officials still believe the sinkhole won’t outgrow scientists’ predictions that it would one day measure about 1,400 feet in diameter
While officials have noticed growth in the sinkhole after seismic activity in the past, this round of activity is concerning because of its severity, as evidenced by Texas Brine’s cracked well pad
“The issue is that it may even go further and have an impact on the integrity of the well bore”
Scientists are starting to map out a three-dimensional look of the ground below the Assumption Parish sinkhole as nearby residents approach the sixth month of being evacuated.
Boudreaux said officials want to determine how much of the earth between the sinkhole and failed cavern has settled.
“There is the possibility that there are other void spaces in the ground,” Boudreaux said.
Scientists believe the restless, 8.5-acre sinkhole in Assumption Parish swampland is undergoing a “growth event” after they noticed an upswing in seismic activity in the past few days within a brine-mining cavern carved into the massive Napoleonville Dome, parish officials said Saturday.
“We would assume that in order to create seismic activity, it’s something shifting ... in the salt,” Boudreaux said. “Not knowing what that may cause is concerning.”
The seismic activity also appears to have cracked the surface of a drilling well pad located directly above Texas Brine’s failed cavern and on the eastern side of the sinkhole.
The cracks, which are 1 inch wide and 14 inches deep, extend from the north side of the pad around to the southwest side of the pad, Boudreaux said.
While officials have noticed growth in the sinkhole after seismic activity in the past, this round of activity is concerning because of its severity, as evidenced by Texas Brine’s cracked well pad
“The issue is that it may even go further and have an impact on the integrity of the well bore”
New bubbling site spotted near Bayou Corne sinkhole
Tracking The Giant Louisiana Sinkhole - Officials Find "Mother Of All Bubbles," New Bubbling Site Spotted Near Bayou Corne!
Residents said they are not sure anyone is going to fix the problem. Some are convinced Mother Nature has already taken over.
ASSUMPTION PARISH, LA (WAFB) - Assumption Parish officials said the most recent bubbling site near the Bayou Corne sinkhole is the biggest pool they have seen yet. Office of Emergency Preparedness workers refer to it as the "mother of all bubbles."
The new bubbling site is an estimated 3,000 feet away from residences and camps.
Homeowner, Mike Schaff, said he has lost faith in Texas Brine.
"They were saying there were no detectable levels of hydrocarbons when they were doing the testing. They said that for several weeks until the sinkhole collapsed and then they changed their tune. In a few weeks they said it was thermogenic," Schaff said.
On Saturday morning, following several days of increased seismic activity being detected by the surface geophones, a sizable amount of vegetative debris rose to the surface in the center of the sinkhole, and several new surface cracks across the work area were discovered running from a northeast-to-southwest direction. As with the bubbling the previous day, no liquid hydrocarbon was observed to have surfaced with the vegetative material.
January 31st public meeting will consist of Texas Brine experts only at 6:00PM at the Assumption Community Center.
February 7th public meeting will consist of state and parish agency personnel at 6:00 PM at the Assumption Community Center
Originally posted by AuntB
Mark your calendars, hopefully the TB officials will show. They say the experts will be there.
January 31st public meeting will consist of Texas Brine experts only at 6:00PM at the Assumption Community Center.
February 7th public meeting will consist of state and parish agency personnel at 6:00 PM at the Assumption Community Center
In regards to the post above about the directions of the cracks. I am in search of a map.
Environmental Signs
Keep an eye out for signs in the environment that indicate a methane gas leak. A typical sign is vapor or frost on the ground near the leak. You may see bubbles if the leak is near a wet area. Methane is toxic to vegetation, so patches of dead plants near a gas line need to be checked. Dust blowing from a hole in the ground is a symptom of an underground gas leak. Finally, listen for a hissing or roaring noise around your gas line. If you suspect a leak, leave the area and call your gas company immediately
Read more: Symptoms of a Methane Gas Leak | eHow.com www.ehow.com...
Tracking The Giant Louisiana Sinkhole - 11 New Bubble Sites Found Southwest Of Sinkhole, As Seismic Activity Increases!
January 23, 2013 - UNITED STATES - Eleven new bubble sites have been found in inundated swampland west of an 8.5-acre sinkhole in northern Assumption Parish, including a frothing spot dubbed the “mother of all bubble sites,” officials said Tuesday.
The sites are roughly in a row west of an unnamed oilfield access road extending south from La. 70 South through the wooded swamp, a parish map shows. The sites bring to 34 the number of known bubble sites in the Bayou Corne and Grand Bayou areas in the vicinity of the sinkhole on Texas Brine Co. LLC’s leased property.
Parish officials added Tuesday that the discovery has led to speculation that the row of bubbles marks the edge of a suspected subsidence zone around the outer rim of the sinkhole and also prompted officials to shift the location of a 1,000-foot-deep well that Texas Brine had been directed to drill at the end of the access road. The well will be moved to the front of the road, officials said.
Assumption Parish officials say scientists have noticed a recent increase in seismic activity near the huge sinkhole at Bayou Corne, La., and worry that it might grow again.
Parish emergency preparedness director John Boudreaux tells The Advocate that the increase was first noticed about two weeks ago.
The well will be moved to the front of the road, officials said.
John Boudreaux, director of the parish Office of Homeland Security and Emergency Preparedness, said Shaw Environmental and Infrastructure Inc. recommended the change to avoid the possibility that the well, which will be used to collect seismic data, would be compromised in the future.
Boudreaux said Tuesday a representative of the landowner found the bubble sites late last week while checking the property from an airboat.
He said the representative gave the frothing site the “mother of all bubble sites” moniker.
Boudreaux said the site was given the name, not for its size, but the intensity of its bubbling.