Timeline: Fracking and earthquakes at Preese Hall
- August 2010 - Cuadrilla Resources begins drilling at Preese Hall site near Blackburn, Lancashire.
- April 2011 - First tremor detected - 2.3 on Richter scale
- May 2011 - Second tremor detected - 1.5 on Richter scale. Drilling suspended while DECC commissions report to examine link between fracking and seismic activity.
- April 2012 - Report finds that fracking did cause two minor earthquakes. Recommendations are made to prevent it happening again.
- December 2012 - Government to decide whether fracking may continue at site.