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Scientists see fracking as cause of earthquakes in heartland

Two pen seismograph for drilling operation. (Getty Images via NewsCred)

WASHINGTON – Evidence is growing that fracking for oil and gas is causing earthquakes that shake the heartland. States such as Oklahoma, Texas, Kansas and Ohio are being hit by earthquakes that appear linked to oil and gas activity. While the quakes are far more often tied to disposal of drilling waste, scientists also increasingly have started pointing to the ...

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