Dang! My blood-lust is thwarted! They stop the injection and Arkansas is wiped off the earthquake list on the side of the blog. Apparently they never had any legal control over the rate (amazing!), so we may never get a time-history of pressure and volume rate. I'll bet that would have shown something interesting!
The one interesting thing is that injection is essential for this dirty business. They must start up again, or move to somewhere else in the state. They should change the laws to get some more scientific information. We had a similar thing in Ontario (Gobles Oil Field), but it never got up to more than M3.
Ah well, everything I write about is shutting down. Time for a nap.