...and no it's not fracking. The faults already existed, the only thing that fracking may have done is lubricate those faults, they still would've happened eventually.
Unaided those earthquakes would have happened anyway, on the normal geologic timescale of some time in the next thousand years.
But I agree with you, it's not fracking, it's wastewater disposal. We've known since the 50's that you don't pump water into areas that are not stable. What's going to happen is the state is going to do very little until there's an earthquake that does major damage. Then the Feds are going to get involved and things will finally get done.
Also, at some point, some random idiot with a following will blame the gays, Jews, Muslims, communists, blacks, or generic sinners for this. The only group that will not be blamed will be the people who pumped water at high speeds into an unstable area.