1. National

UK fracking allowed to resume

The government says fracking for shale gas can resume in the UK, with new controls to address the risk of small earth tremors.

View all 27 updates ›

Fracking industry to use traffic light system to avoid quakes

The Government is to implement a traffic light system to gauge the risks of seismic activity resulting from fracking.

The system will require operators to stop if seismic activity reaches magnitude 0.5, which could not be felt at the surface but is higher than normal.

Cuadrilla Resources suspended its fracking activities at four sites near Blackpool, Lancashire following two minor tremors in April and May 2011.

More on this story