A series of earthquakes hit the Oklahoma City metro on Friday night and Saturday morning, with a 4.4-magnitude quake recorded at 5:36 a.m. The USGS recorded at least 12 quakes since late Friday night, with the largest being a 4.4-magnitude earthquake. Jake Walters from the Oklahoma Geological Survey stated that earthquakes of this size have occurred in the area before, including in 2015 and 2017. He noted that there has been ongoing seismic activity, with smaller earthquakes in recent years. Many of the 2017 earthquakes were attributed to wastewater injection wells, but the cause of this series of earthquakes has not been commented on by the Oklahoma Corporation Commission.