Human Activity Shakes Up Geological Hazard Map
Water injected underground causes faults to separate and slip.
By Mark Barna
Dec 15, 2016 6:00 AMApr 18, 2020 10:20 PM
During hydraulic fracturing, wastewater is injected deep underground. The process causes faults to separate and slip, resulting in earthquakes in states previously not associated with seismic hazards, such as Oklahoma. (Credit: Pat Carter/Getty Images)
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