Plus: Wind power soars past coal in Texas, T. Boone Pickens puts his giant ranch up for sale, and former Exxon CEO Rex Tillerson is on his last legs as Secretary of State.
The fault lines had been inactive for 300 million years before fracking started.
And more could be on their way, especially if drilling activity in the Barnett Shale region grows.
We guess this is good news.
So what’s with all those earthquakes in North Texas? Is fracking really to blame? Let us give you a visual.
After the earthquakes in the Barnett Shale, some small-town citizens underwent a surprising transformation.
StateImpact Texas found a substantial connection between hydraulic fracturing, or "fracking," and the sudden surge in Texas quakes.