For those of you who are unaware: There is a massive sinkhole in Louisiana that we've been monitoring. It's in the top of a salt dome, and it's very near to another salt dome being used to store a great deal of butane. Here are the articles regarding it, in chronological order.
August 12: This is a developing story – those of you in Louisiana please take note.
I do not always agree with Dutchsince, but this sounds like a situation to monitor.This article explains what a salt dome is, so it's important for background.
August 20: joehill1915
Source: Assumption Parish Police Jury
There has been reported increased seismic activity in the Bayou Corne/Grand Bayou area. This activity is not the sharp tremors that were occurring prior to the development of the sinkhole; however, indications show (through monitors set up by USGS) that seismic activity has been occurring NW of the sinkhole and it’s unknown at this time what this may mean. USGS is continuously monitoring this activity.