EARTHQUAKES: EPA keeping seismic report on drilling under wraps Mike Soraghan, E&E reporter Published: Tuesday, May 28, 2013 U.S. EPA is keeping secret its study on earthquakes linked to oil and gas drilling. Please subscribe to EnergyWire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.