M3.1 - OKLAHOMA

Preliminary Earthquake Report
Magnitude	3.1
Date-Time	22 Apr 2015 20:57:05 UTC 22 Apr 2015 15:57:05 near epicenter 22 Apr 2015 14:57:05 standard time in your timezone
Location	36.921N 97.620W
Depth	5 km
Distances	12 km (7 mi) S of Caldwell, Kansas 53 km (33 mi) WNW of Ponca City, Oklahoma 54 km (33 mi) WSW of Arkansas City, Kansas 62 km (38 mi) NNE of Enid, Oklahoma 161 km (100 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.6 km; Vertical 2.0 km
Parameters	Nph = 43; Dmin = 19.0 km; Rmss = 0.28 seconds; Gp = 56° Version =
Event ID	us 200028f9

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

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