Well this is interesting. It turns out that fracking activities have been linked to an earthquake that registered 4.6 on the Richter scale. That’s strong enough that people indoors will feel it, with noticeable shaking of indoor objects and rattling noises. People outdoors will feel it slightly.
It’s the biggest earthquake caused by fracking that has been clearly linked to fracking to date.
Most fracking earthquakes won’t ever be felt by anybody. Apparently, bigger fracking projects in the right, er, wrong location could lead to bigger earthquakes. It wasn’t something we had been concerned about previously, but it appears it’s time to look into it a little closer. Stay tuned.

