Fracking waste and quakes
Underground storage of liquid waste from these mining operations can make an area more vulnerable to tremors
By Stephen Ornes, 13:53 PM July 26, 2013
Earthquake activity has spiked recently in parts of the central United States where shale rock is increasingly being mined for natural gas and oil. Most of the quakes are small and don’t cause damage. But some of the small shakes may be signs that a larger one will strike soon in the area, scientists now report.
These small central U.S. quakes have been occurring near sites of hydraulic fracturing, or fracking. Fracking is one way companies draw natural gas or mixes of other hydrocarbons (s...
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