The U.S. Geological Survey says several earthquakes struck central Oklahoma in the morning on July 14, including one with a preliminary magnitude of 4.2. State and local emergency management officials said there have been no reports of injury or damage …
A federal judge has dismissed a lawsuit against three oil and gas companies over Oklahoma’s ongoing earthquakes. The lawsuit, filed last year on behalf of Sierra Club Oklahoma, asked for a reduction of production waste from Devon Energy Corp., Chesapeake …
Oklahoma experienced fewer earthquakes last year compared with 2015 and a recent study of human-induced earthquakes predicts another year of reduced seismicity for the state in 2017. The U.S. Geological Survey warns, however, that that Oklahoma and southern Kansas, along …
The U.S. Geological Survey reports a magnitude 4.0 earthquake and three smaller temblors have struck Oklahoma. The survey reported that the magnitude 4.0 quake hit on March 25 south of Medford in north-central Oklahoma. Three smaller temblors — with magnitudes …
The U.S. Geological Survey reports a magnitude 4.0 earthquake and two smaller temblors struck Oklahoma on March 22. The larger quake was recorded near Stroud, located about 60 miles northeast of Oklahoma City. Two smaller quakes were also recorded. A …
The Environmental Protection Agency told Oklahoma regulators last November to do more to protect the state from a surge in earthquake activity that scientists have linked to the underground disposal of oil and gas wastewater. An EPA administrator sent a …
Recent reports show that disposal well operators placed about 23 percent less saltwater into Oklahoma’s deepest geological formation within the earthquake zone in 2016 compared to the previous year. The year-end data reports about the Arbuckle formation come from the …
Five companies are being sued over a magnitude 5.0 earthquake at Cushing, Oklahoma. The lawsuit filed by David and Myra Reid, Valerie Branyan and Timothy Harris names White Star Petroleum, Crown Energy Company, PetroWarrior LLC, Cher Oil Company and FHA …
The U.S. Geological Survey on Sunday recorded a magnitude 3.4 earthquake in north-central Oklahoma just two days after a 4.3 magnitude temblor struck in the same area. The 3.4 magnitude quake was recorded at 8:34 a.m. on Nov. 27 seven …
Two earthquakes recorded within one minute of each other have shaken an area in north-central Oklahoma near the site near of a key oil hub. The U.S. Geological Survey says the earthquakes occurred Nov. 22 in Cushing in Payne County, …
