Displaying items by tag: earthquake threats

Liz Truss is being urged to relax the limits on earthquakes caused by fracking to kickstart an energy revolution. She is poised to end the fracking freeze, to make Britain energy independent by 2040. Fracking businesses are lobbying for limits on seismic activity to be substantially increased to kickstart the industry. Currently drilling must stop if tremors of 0.5 occur. Experts say those occur naturally and are often imperceptible above ground. Cuadrilla want equality with other industries. Geothermal energy can create earthquakes of higher magnitudes than 0.5. The USA allows magnitude 4 tremors. A 2012 report said magnitude 3 tremors were ‘felt by few people’. But when Cuadrilla’s Lancashire test caused a 2.9 tremor, homes shook and objects fell off of shelves. A petroleum geologist at Newcastle University said fracking had thus far not been a major source of earthquakes; coal mining had caused many times more.