 PLaNS to begin drilling for gas using a controversial method that was blamed for an earthquake in a seaside resort has been given the green light in Scotland for the first time.  The process of fracking is believed to have led to tremors in Blackpool and along parts of the Lancashire coast. Now an energy firm has been granted a licence by the Scottish Environmental Protection agency (Sepa) to extract gas trapped in coal near the mining village of Canonbie in Dumfries and Galloway.  The area has been chosen because it is rich in minerals and built on a quartz bed.  Greenpark Energy, based in Berwick-upon-Tweed, is believed to be planning to tap into gas trapped in 400,000 tonnes of coal which was once mined near the village, and is reported to have already carried out testing by drilling boreholes.  It comes despite concern over earthquakes thought to have been caused by the fracking   or hydraulic fracturing   at an offshore plant near Blackpool. an independent report last week concluded it was  highly probable  that the method was the cause of earth tremors which hit the Lancashire coast in april and May.  The quakes measured 2.3 and 1.4 on the Richter scale, and oil and gas firm Cuadrilla Resources later admitted they have caused 50 quakes in the area in eight mon 