Reuters: An earthquake in Oklahoma on Sept. 3 was the strongest on record in the state and had a magnitude of 5.8, the U.S. Geological Survey said on Wednesday.
The quake, felt in an area stretching from Texas to South Dakota, hit near the northern Oklahoma town of Pawnee. It fueled growing concerns about seismic activity linked to a decade-long boom in oil and gas production after advances in hydraulic fracturing and horizontal drilling.
The earthquake prompted the state's oil and gas regulator, the...