On Feb 11, 9:03*am, "Morgans" wrote:

But really, are there _any_ documented, proven cases of fracking causing a
quake?

There was a case over here before christmas of a fracking test site
near a place called Blackpool allegedly causing two minor quakes. The
north-west of England isn't renowned for it's seismic activity, but I
have not heard anything more about the case, so don't know if it was
just coincidence or not. I would tend to think it was, just because
small quakes DO happen occasionally, and these were not really out of
the ordinary magnitude-wise.