Interesting the connection between fracking and possible magma/volcanic activity. The connection with earthquakes is a foregone conclusion, despited denial by the oil industry. Another revelation through Dutchsince.
It took me a minute to find it — but now you can see it for sure — a Fracking (frac well drilling) operation JUST WEST of the Plume area — so all together we have a giant natural gas frack operation — a series of dormant volcanoes, town names like Sulphur Springs, Hot Springs, and Crater of Diamonds/Murfreesboro — the plumes appear on VISIBLE SATELLITE from space.. only for a short time , at MULTIPLE SITES always near sunset… and gone by the AM (thus ruling out a large fire of some kind).
To me, IMO, it has all the pieces there to put together.. a geologic steaming event of some kind … the steam is coming from this dormant volcanic area BEING FRACKED (injected with water) !!!!!