EnergyWire reports that more than 200 earthquakes of magnitude 3.0 or larger have shaken central Oklahoma since 2009. That's about 40 a year. Before that, there were usually one to three earthquakes in that region annually. Earthquakes are now six times more likely in central Oklahoma than prior to 2009.This increased seismic risk from fracking wastewater disposal adds to the ever-growing need - and the business case – for widespread adoption of alternative, waterless fracking technologies.
Tuesday, October 29, 2013
In Oklahoma, a whole lotta shakin' goin' on
The US Geological Survey and Oklahoma Geological Survey have issued a warning of increased risk of earthquakes in central Oklahoma. The quakes are likely due to induced seismicity from the deep injection of wastewater from unconventional oil and gas drilling that can lubricate geologic faults and trigger man-made earthquakes.