Researchers say oil and gas production may explain a sharp increase in the earthquakes from Alabama to the Northern Rockies. A U.S. Geological Survey team reports that the rate of quakes jumped six-fold from the late 20th century through last year, and that the changes were "almost certainly man-made."
A recent series of earthquakes in northeastern Ohio, most recently on New Year's Eve, prompted that state's Department of Natural Resources to suspend development by natural gas drillers of five wastewater disposal wells.…
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