U.S. Geological Survey confirms: Human activity caused 5.7 quake in Oklahoma (Fracking)

by cuitlahuacrivas

By Scott Kaufman
Friday, March 7, 2014 14:12 EDT
 
usgs earthquake map
 

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.”

Injection wells are considered by some to be the most environmentally sound method of disposing of waste-water — which is a byproduct of both hydrofracking and conventional oil production — because they use the earth itself to both filter and contain the pollution.

http://www.rawstory.com/rs/2014/03/07/u-s-geological-survey-confirms-human-activity-caused-5-7-quake-in-oklahoma/

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