PNR Fracking Earthquakes - The 0.5ML Safety Limit

Review of the earthquakes caused by fracking the Fylde: 

1. What happened?
2. How did we get here?
3. Where are we going?
4. Is the 0.5 limit too low?
5. What's the regulators involvement?

All answered in this paper in simple language with clear conclusions!

Author: Michael Hill, B.Sc.C.Eng. MIET.