Fracking might have caused Colorado/New Mexico Area Quakes

http://www.publicbroadcasting.net/ksfr/news.newsmain?action=article&ARTICLE_ID=1843949

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"SANTA FE, Aug. 23 -- Following a succession of earthquakes near New Mexico's northern border, geology professor Rick Astor of New Mexico Tech says one possibility for the "swarm" of quakes in that area is the prevalance of energy drilling there.

He says faults inside the earth have stress and often can slip. "Earthquakes could be induced if the fault's frictional properties are altered by the injection of (fracking) fluids."'