Pumps at dawn in an oil field over a formation where gas and oil extraction using hydraulic fracturing, or 'fracking' is underway. Photo: AFP

US geologists find ‘probable’ link between small earthquakes and fracking in Ohio

Long suspected links between earth tremors and hydraulic fracturing, or 'fracking' receive boost from Ohio study

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Pumps at dawn in an oil field over a formation where gas and oil extraction using hydraulic fracturing, or 'fracking' is underway. Photo: AFP
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