Oklahoma scientists say earthquakes linked to oil and gas work

April 21, 2015 8:58 PM

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(Reuters) - Oklahoma geologists have documented strong links between increased seismic activity in the state and the injection into the ground of wastewater from oil and gas production, a state agency said on Tuesday.

Currently, Oklahoma is recording 2-1/2 earthquakes daily of a magnitude 3 or greater, a seismicity rate 600 times greater than observed before 2008, the report by the Oklahoma Geological Survey (OGS) said.

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