The Cushing oil hub is crowded with hulking oil tanks, miles of pipeline and countless pumps, compressors and other equipment used to ferry around the roughly 80 million barrels of crude stored there.
Oklahoma has experienced a swarm of earthquakes, which seismologists say might be triggered by disposal wells used by the oil and gas industry, and it’s not hard to imagine the havoc a little earth-shaking might have on the high-profile oil hub.
Oklahoma has never been known as earthquake country, with a yearly average of about 50 tremors, almost all of them minor. But in the past three years, the state has had thousands of quakes. This year has been the most active, with more than 2,600 so far, including 87 last week.
OKLAHOMA CITY - Mary Catherine Sexton has been rattled enough. This fall her neighborhood in the northeastern part of this city has been shaken by dozens of minor earthquakes. "We would just have little trembles all the time," she said.
Central Oklahoma is still experiencing a “significant rise” in magnitude 3.0 or greater earthquakes, and federal and state seismologists are collaborating to study possible links to disposal wells used by the oil and gas industry, the U.S. Geological Survey says.