The shutdown of nine wastewater wells by state regulators folllowing last week’s 5.1 magnitude earthquake centered near Prague will be indefinite according to a spokesman for the Oklahoma Corporation Commission.
Matt Skinner said the wells, suspected of possibly causing the large quake and dozens of others from aftershock, will be closed while scientists study the cause. In years past, such disposal wells were suspected of causing other quakes in the state.
The nine wells in question are within 10 miles of the epicenter and were used to dispose of oil and gas wastewater which typically is salt water. It is returned to the ground in the Arbuckle Formation.
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