M4.0 - OKLAHOMA

Preliminary Earthquake Report
Magnitude	4.0
Date-Time	21 Mar 2015 10:08:51 UTC 21 Mar 2015 05:08:52 near epicenter 21 Mar 2015 02:08:51 standard time in your timezone
Location	36.360N 97.099W
Depth	5 km
Distances	18 km (11 mi) ENE of Perry, Oklahoma 27 km (17 mi) N of Stillwater, Oklahoma 38 km (24 mi) S of Ponca City, Oklahoma 60 km (37 mi) NNE of Guthrie, Oklahoma 105 km (65 mi) NNE of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 0.8 km; Vertical 2.0 km
Parameters	Nph = 34; Dmin = 41.2 km; Rmss = 0.53 seconds; Gp = 80° Version =
Event ID	us 10001pd7

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

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