Heartland danger zones emerge on new U.S. earthquake hazard map
http://news.sciencemag.org/earth/2015/04/heartland-danger-zones-emerge-new-u-s-earthquake-hazard-map …
#fracking #manmadeearthquakepic.twitter.com/QfrfYKvpAv
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Heartland danger zones emerge on new U.S. earthquake hazard map
http://news.sciencemag.org/earth/2015/04/heartland-danger-zones-emerge-new-u-s-earthquake-hazard-map …
#fracking #manmadeearthquakepic.twitter.com/QfrfYKvpAv