A few days after Thanksgiving, Oklahoma City residents huddled in their homes watching a thick layer of ice snap power lines and split stubby trees. Only a few days later, as the ice started to thaw and power was restored in most neighborhoods, a 4.7-magnitude earthquake shook the state a couple hours before dawn.
The epicenter was 100 miles north, in a region where oil and gas have for decades driven the state economy. Scientists suspect the practice of injecting deep into the earth the salty wastewater from the drilling process may be causing the earthquakes, or at least increasing the frequency.
Prior to 2009, the state had just two quakes per year. Now on average, quakes shake the state twice a day, more than anywhere in the lower 48 states, a fact that is stoking outrage among residents who are growing tired of worrying about the foundations of their homes and whether to buy earthquake insurance. The quakes are an […]