- Associated Press - Thursday, December 3, 2015

OKLAHOMA CITY (AP) - The Oklahoma Corporation Commission is urging the shut-down of seven wastewater disposal wells in a swath of the state that has been rattled by a swarm of earthquakes.

The commission’s oil and gas conservation division released its recommendations Thursday, calling for four disposal wells near the Byron-Cherokee area and three near Medford to stop operations. The agency also says it’s alerted dozens of disposal wells in that area to prepare for possible changes to operations.

A 4.7 magnitude earthquake struck about 15 miles southwest of Medford on Monday. That temblor was followed by more than a dozen earthquakes of magnitude 2.5 or greater.

Some scientists say injection of massive amounts of the byproduct of oil and gas production - chemical-laced wastewater - deep into the earth has induced the quakes.

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