M3.1 - OKLAHOMA

Preliminary Earthquake Report
Magnitude	3.1
Date-Time	23 Dec 2015 03:04:01 UTC 22 Dec 2015 21:04:01 near epicenter 22 Dec 2015 21:04:01 standard time in your timezone
Location	36.942N 97.853W
Depth	5 km
Distances	18 km (11 mi) NW of Medford, Oklahoma 60 km (37 mi) N of Enid, Oklahoma 73 km (45 mi) WNW of Ponca City, Oklahoma 73 km (45 mi) W of Arkansas City, Kansas 166 km (102 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 0.8 km; Vertical 2.0 km
Parameters	Nph = 17; Dmin = 9.9 km; Rmss = 0.05 seconds; Gp = 74° Version =
Event ID	us 100048yr

For updates, maps, and technical information, see: Event Page or USGS Earthquake Hazards Program

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