Deckhands on a Sandridge Energy oil rig change out a drill pipe in a fracking operation on the Oklahoma border in Harper County, Kan., in February 2012. A 3.8-magnitude quake in the area on December 16, 2013, rattled windows, cracked walls and shook furniture.
Deckhands on a Sandridge Energy oil rig change out a drill pipe in a fracking operation on the Oklahoma border in Harper County, Kan., in February 2012. A 3.8-magnitude quake in the area on December 16, 2013, rattled windows, cracked walls and shook furniture. MCT
Deckhands on a Sandridge Energy oil rig change out a drill pipe in a fracking operation on the Oklahoma border in Harper County, Kan., in February 2012. A 3.8-magnitude quake in the area on December 16, 2013, rattled windows, cracked walls and shook furniture. MCT

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May 01, 2014 5:41 PM

Geophysicists link fracking boom to increase in earthquakes

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