The closest I've seen is sources saying that fracking itself only explains a minority of the increase in earthquakes in places like Oklahoma, and that the majority are more properly attributed to other things, particularly the wastewater injection wells that fracking operations use to dispose of all the wastewater that fracking produces.
Which is such an amazingly damn hair-splitty distinction to most of us, but I can see where a spin doctor could have lots of fun with it.
