Less than a day after the United States Geological Survey released a study saying that risks in Oklahoma are comparable to "high-hazard sites" in California, two earthquakes of 4.1-plus magnitude rattled the state.
A 4.1 magnitude earthquake was recorded 4 miles north of Crescent at 5:19 a.m., according to the USGS. Its depth was recorded at 3.4 miles.
Another earthquake was felt across the Tulsa area late Monday night. It was a 4.2 magnitude temblor that hit 3 miles northeast of Crescent at 11:53 p.m., according to the USGS. It was the largest earthquake to rattle Oklahoma since a 5.1 quake near Fairview on Feb. 13.
A 2.9 magnitude quake hit about 9 miles northeast of Enid at 10:35 p.m., the USGS reported.
During the past seven days, Oklahoma has recorded 44 earthquakes, according to the USGS. Monday night's was the largest during that timeframe.