Lawsuits accuse fracking companies of triggering Oklahoma’s earthquake surge

Two lawsuits in Oklahoma accuse more than a dozen oil and gas companies of triggering recent earthquakes by disposing of their drilling waste in deep wells. 

Inside Climate News, Jan 20, 2016

http://insideclimatenews.org/news/19012016/lawsuits-fracking-triggering-oklahoma-earthquake-surge-oil-gas-waste-disposal-injection-wells