7 million Americans at risk of man-made earthquakes | Emergency Preparedness | Forums

Drill baby Drill

Earthquakes are a natural hazard — except when they're man-made. The oil and gas industry has aggressively adopted the technique known as hydraulic fracturing, or fracking, to shatter subsurface shale rock and liberate the oil and gas lurking there. But the process results in tremendous amounts of chemical-laden wastewater. Horizontal drilling for oil can also produce massive amount of natural, unwanted salt water. The industry disposes of this wastewater by pumping it into deep wells.

And the Earth moves.

[Fracking is not the cause of quakes. The real problem is fracking wastewater.]

On Monday, the U.S. Geological Survey published for the first time an earthquake hazard map covering both natural and "induced" quakes. The map and an accompanying report indicate that parts of the central United States now face a ground-shaking hazard equal to the famously unstable terrain of California.

more https://www.washingtonpost.com/news/speaking-of-science/wp/2016/03/28/new-seismic-hazard-map-includes-fracking-related-quakes-for-the-first-time/