Oil extraction wastewater caused Oklahoma's biggest quake
Wednesday, March 27, 2013 - 15:00
in Earth & Climate
By Tia GhoseLiveScience The largest-ever recorded quake in Oklahoma was caused by the injection of wastewater, a byproduct of oil extraction, into the ground, new research confirms.On Nov. 6, 2011, a series of earthquakes, including a 5.6-magnitude temblor, struck the rural town of Prague, about 37 miles (60 kilometers) east of Oklahoma City, crumbling homes in the area and damaging a federal high...