A spokeswoman for Cuadrilla, the company carrying out the tests, said drilling was suspended as a precaution following the earthquake, confirmed by the British Geological Survey as the area's second in as many months.
I love shale gas earthquakes! They prove everything I have said about using rock mechanics for earthquakes. It would be very unusual, or nearly impossible, to have an earthquake from the first fracking of the shale. I wonder if they were testing an injection well, since that would be the main cause.
The Brits should get all their creaky Victorian seismometers and check it out!