STROUD, Okla. – The U. S. Geological Survey reports a magnitude 4.0 quake and two smaller temblors have struck Oklahoma.
The larger earthquake was recorded Wednesday in the near Stroud, located about 60 km northeast of Oklahoma City. Two smaller quakes were also recorded. A magnitude 2.7 earthquake near Fairview, and a magnitude 2.5 temblor hit near mooreland.
No injuries or damage are reported and geologists say damage is not likely in earthquakes below magnitude 4.0.
Thousands of earthquakes were recorded in Oklahoma in the past few years, and many are linked to the underground injection of wastewater from oil and gas activities.
Regulators have targeted oil and gas producers close some of the disposal wells, or to reduce the volume of fluids they inject.