Waste from oil and gas operations tied to Oklahoma earthquakes
Washington (UPI) May 6, 2013 - The U.S. and Oklahoma Geological Surveys said an increase in earthquakes in the state may be attributed to heightened oil and gas activity. USGS said it examined the rate of increase in earthquakes in Oklahoma and found they weren't due to random fluctuations in seismic activity in that state. The joint study found injecting wastewater underground can lead to pressure increases t ... more
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