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ND geologist says quake not related to fracking
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WILLISTON, N.D. (AP) _ A North Dakota geologist says an

earthquake in the western oil patch is not connected to hydraulic

fracturing.

The Friday quake about 11 miles southeast of Williston

registered at magnitude 3.3 _ enough to be felt but not strong

enough to cause damage.

Geologist Fred Anderson with the state Mineral Resources

Department says that the quake was consistent with historical seismic activity in the

region. He says speculation that oil field fracking might have

caused it isn't plausible.

Fracking involves pumping water, sand and chemicals underground

to break up shale rock so oil can be retrieved.