HENNESSEY, Okla. (AP) — Five earthquakes have been recorded in central Oklahoma, including one with a preliminary magnitude rated at 4.1.
The U.S. Geological Survey reports the 4.1 magnitude quake struck at 4:50 a.m. Tuesday near the town of Hennessey in Kingfisher County, about 45 miles (72 kilometers) northwest of Oklahoma City.
Four smaller quakes with preliminary magnitudes ranging from 2.4 to 2.9 struck the same area between 2:06 a.m. and 10:13 a.m. Tuesday.
Oklahoma Department of Emergency Management spokeswoman Keli Cain says no injuries or damage are reported.
Thousands of earthquakes have been recorded in Oklahoma in recent years — many linked to the underground injection of wastewater from oil and natural gas production operations. State regulators have directed oil and gas producers to close some wells and reduce injection volumes in others.