Thursday, July 28, 2016

Risk of man-made earthquakes now factor in seismic hazard analysis

A few years ago, a 5.6 magnitude earthquake believed to have been caused by injection of waste water from fracking operations into the subsurface struck Oklahoma.

The temblor damaged highways, toppled chimneys, and caused other damage. Last year, there were nearly 900 earthquakes above 3.0 on the Richter scale in the state, and others have been recorded in regions were fracking is underway.

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