Oklahoma officials say fracking is the cause of Oklahoma earthquakes. Correspondent Scott Carr reports: The state commission that regulates Oklahoma’s oil and natural gas industry has ordered some injection well operators to reduce wastewater disposal volumes after at least a dozen earthquakes hit an area north of Oklahoma City in less than a week. A 4.2 magnitude temblor on New Year’s Day caused minor damage but no injuries. Many of the Oklahoma’s quakes are occurring in areas where injection wells pump salty wastewater, a byproduct of oil and gas production, deep into the earth
