Another earthquake has shaken parts of northern Oklahoma near the Kansas border.
The U.S. Geological Survey says the 3.6 magnitude earthquake was recorded at 3:28 p.m. on Aug. 1 about 11 miles south-southwest of Medford in Grant County. Medford is located about 85 north of Oklahoma City and 17 miles south of the Kansas border.
Geologists say the temblor occurred at a depth of about three miles.
The U.S. Geological Survey reported a 4.4 magnitude earthquake shook northern Oklahoma on July 20 at about 3:20 p.m. The epicenter of that quake was located about 9 miles east of Cherokee near the Kansas border.
No injuries or damage was immediately reported. Geologists say earthquakes of magnitude 2.5 to 3.0 are generally the smallest that are felt by humans and damage is not likely from earthquakes below magnitude 4.0.
The Oklahoma Geological Survey has said it is likely that many recent earthquakes in the state are being triggered by the injection of wastewater from oil and natural gas drilling operations.
Related:
- 4.4M Northern Oklahoma Earthquake Rattles State
- Quakes Spur more Study of Wells by Oklahoma Corp. Commission
- Oklahoma Supreme Court: Oil Firms Can Be Sued over Quakes
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