Did fracking cause 11 quakes in Ohio?

The conservative John-Kasich-run state of Ohio thinks that a process used to get rid of wastewater from fracking, and other oil and gas drilling, did in fact cause the earthquakes, as does a seismologist investigating the situation.  Though the AP story is a bit confusing.  Apparently, the oil and gas wastewater that likely caused the earthquakes wasn't from a fracking operation, though it's the same kind of brine wasterwater dumping that takes place with fracking.