Fracking causes earthquakes?

Heard someone claim that fracking is causing earthquakes, and i ha to ask bryant about that one. Did a little research, and like most things involving fracking, found it to be overblown

Yeah I wondered about this too, but it seems like fracking is fairly safe.  I can see where mankind could cause something like a cave in somehow.  But an earthquake?

Well i did a little research, and tremors is more like it. But so minor it cant even be felt. All the research ive done points to it being safe, with the liberals using debunked hollywood films to back up their argument.

Of course they cause earthquakes (same way magma does when traveling through the crust, braking rock open and releasing energy), just not on the kind of scale people talk about.