The British Geological Survey believes earthquakes are a possible effect of fracking:<br><br><a target="_blank" href="http://www.independent.co.uk/news/science/small-earthquake-in-blackpool-major-shock-for-uks-energy-policy-2291597.html">http://www.independent.co.uk/news/science/small-earthquake-in-blackpool-major-shock-for-uks-energy-policy-2291597.html</a><br>