Oklahoma oil and gas officials want to quickly undertake new efforts to reduce man-made earthquakes after a jarring weekend of quakes north of Oklahoma City.
University of Oklahoma officials were seeking a $25 million donation from billionaire oilman Harold Hamm last year, records show, at a time when scientists at the school were formulating the state's position on oil drilling and earthquakes.
The earthquakes displayed were located in Oklahoma and occurred from Jan. 2, 2008, until Jan. 15, 2015, based on Oklahoma Geological Survey information. The earthquakes are a minimum 2.0 magnitude. Click map to link to animation. Map courtesy of USGS.
A surge in seismic activity is occurring around the U.S., and many top scientists are pointing at injection of waste from drilling and hydraulic fracturing as a possible culprit.