Earthquakes Tied to Fracking Boom, Two New Studies Confirm
▻http://ecowatch.com/2015/06/23/earthquakes-fracking-boom
Oklahoma was never big earthquake country, but in the last six years their numbers have surged, going from an average of two a year over 3.0 magnitude to 538 last year, surpassing California as the U.S.’s most seismically active state. Regions in Texas and Ohio that rarely felt an earthquake are now seeing wave after wave of them; eight states overall have seen big increases.
Studies keep showing that the earthquakes start happening when wastewater from fracking is injected underground. Scientists say it’s because those large quantities of water, forced underground by heavy pressure, activate dormant fault lines. Now two more such studies have been added to the pile of evidence.
#fracturation_hydraulique #séisme
