Fracking Earthquakes

A series of earthquakes measuring up to 5.7 on the Richter scale, across Okalahoma, USA were triggered by injection of waste-water from fracking.

The United States Geological Survey (USGS) issued a press release yesterday indicating that the magnitude 5.7 earthquake that struck Prague, Oklahoma in 2011 was unintentionally human-induced.

The USGS claims that the magnitude 5.0 earthquake triggered by waste-water injection the previous day “trigger[ed] a cascade of earthquakes, including a larger one, [which] has important implications for reducing the seismic risk from waste-water injection.”

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