2020-12-30 11:04:44 (M3.8) Kansas 37.7 -97.2 (86843)

M3.8 Earthquake - Kansas

Preliminary Report

Magnitude	3.8
Date-Time	30 Dec 2020 11:04:44 UTC 30 Dec 2020 05:04:44 near epicenter 30 Dec 2020 05:04:44 standard time in your timezone
Location	37.705N 97.245W
Depth	5 km
Distances	2.5 km (1.6 mi) NE of Eastborough, Kansas 8.3 km (5.1 mi) E of Wichita, Kansas 9.6 km (6.0 mi) W of Andover, Kansas 17.8 km (11.1 mi) N of Derby, Kansas 202.4 km (125.5 mi) SW of Topeka, Kansas
Location Uncertainty	Horizontal: 1.8 km; Vertical 1.9 km
Parameters	Nph = 29; Dmin = 70.8 km; Rmss = 0.26 seconds; Gp = 124° Version =
Event ID	us 6000d4be

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2020-12-23 21:28:15 (M3.3) Oklahoma 36.6 -99.0 (86843)

M3.3 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.3
Date-Time	23 Dec 2020 21:28:15 UTC 23 Dec 2020 15:28:15 near epicenter 23 Dec 2020 15:28:15 standard time in your timezone
Location	36.556N 98.978W
Depth	1 km
Distances	9.2 km (5.7 mi) WSW of Waynoka, Oklahoma 39.4 km (24.4 mi) ENE of Woodward, Oklahoma 100.1 km (62.1 mi) W of Enid, Oklahoma 116.9 km (72.5 mi) NNW of Weatherford, Oklahoma 178.7 km (110.8 mi) NW of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 2.5 km; Vertical 1.2 km
Parameters	Nph = 89; Dmin = 5.7 km; Rmss = 0.81 seconds; Gp = 121° Version =
Event ID	ok 2020zdwy

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Oklahoma Seismic Network
University of Oklahoma

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2020-12-19 18:52:23 (M3.4) Kansas 37.7 -97.2 (86843)

M3.4 Earthquake - Kansas

Preliminary Report

Magnitude	3.4
Date-Time	19 Dec 2020 18:52:24 UTC 19 Dec 2020 12:52:24 near epicenter 19 Dec 2020 12:52:24 standard time in your timezone
Location	37.727N 97.213W
Depth	5 km
Distances	6.2 km (3.8 mi) SE of Bellaire, Kansas 6.9 km (4.3 mi) WNW of Andover, Kansas 11.6 km (7.2 mi) ENE of Wichita, Kansas 20.7 km (12.8 mi) NNE of Derby, Kansas 198.8 km (123.2 mi) SW of Topeka, Kansas
Location Uncertainty	Horizontal: 2.1 km; Vertical 6.5 km
Parameters	Nph = 32; Dmin = 74.6 km; Rmss = 0.30 seconds; Gp = 126° Version =
Event ID	us 7000cshp

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2020-12-19 18:47:54 (M3.5) Kansas 37.7 -97.2 (86843)

M3.5 Earthquake - Kansas

Preliminary Report

Magnitude	3.5
Date-Time	19 Dec 2020 18:47:55 UTC 19 Dec 2020 12:47:55 near epicenter 19 Dec 2020 12:47:55 standard time in your timezone
Location	37.715N 97.222W
Depth	2 km
Distances	4.7 km (2.9 mi) NE of Eastborough, Kansas 7.5 km (4.7 mi) W of Andover, Kansas 10.5 km (6.5 mi) ENE of Wichita, Kansas 19.2 km (11.9 mi) NNE of Derby, Kansas 200.3 km (124.2 mi) SW of Topeka, Kansas
Location Uncertainty	Horizontal: 1.7 km; Vertical 5.3 km
Parameters	Nph = 74; Dmin = 72.1 km; Rmss = 0.30 seconds; Gp = 63° Version =
Event ID	us 7000cshm

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2020-12-08 16:54:03 (M3.0) Kansas 37.7 -97.2 (86843)

M3.0 Earthquake - Kansas

Preliminary Report

Magnitude	3.0
Date-Time	8 Dec 2020 16:54:04 UTC 8 Dec 2020 10:54:04 near epicenter 8 Dec 2020 10:54:04 standard time in your timezone
Location	37.719N 97.241W
Depth	5 km
Distances	4.0 km (2.5 mi) NNE of Eastborough, Kansas 9.0 km (5.6 mi) ENE of Wichita, Kansas 9.2 km (5.7 mi) W of Andover, Kansas 19.4 km (12.0 mi) N of Derby, Kansas 201.0 km (124.6 mi) SW of Topeka, Kansas
Location Uncertainty	Horizontal: 1.7 km; Vertical 2.0 km
Parameters	Nph = 34; Dmin = 72.8 km; Rmss = 0.32 seconds; Gp = 98° Version =
Event ID	us 7000cp6l

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2020-11-16 19:12:02 (M3.0) Oklahoma 36.8 -97.8 (86843)

M3.0 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.0
Date-Time	16 Nov 2020 19:12:02 UTC 16 Nov 2020 13:12:02 near epicenter 16 Nov 2020 13:12:02 standard time in your timezone
Location	36.780N 97.812W
Depth	0 km
Distances	6.9 km (4.3 mi) NNW of Jefferson, Oklahoma 43.1 km (26.7 mi) N of Enid, Oklahoma 65.4 km (40.5 mi) W of Ponca City, Oklahoma 75.7 km (46.9 mi) WSW of Arkansas City, Kansas 148.1 km (91.8 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.6 km; Vertical 1.2 km
Parameters	Nph = 146; Dmin = 9.0 km; Rmss = 0.70 seconds; Gp = 54° Version =
Event ID	ok 2020wocz

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Oklahoma Seismic Network
University of Oklahoma

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2020-11-10 16:01:50 (M3.2) Oklahoma 35.0 -97.6 (86843)

M3.2 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.2
Date-Time	10 Nov 2020 16:01:50 UTC 10 Nov 2020 10:01:50 near epicenter 10 Nov 2020 10:01:50 standard time in your timezone
Location	34.989N 97.600W
Depth	0 km
Distances	5.6 km (3.4 mi) SSE of Dibble, Oklahoma 29.7 km (18.4 mi) SSW of Norman, Oklahoma 31.5 km (19.5 mi) ESE of Chickasha, Oklahoma 40.2 km (24.9 mi) SSW of Moore, Oklahoma 53.6 km (33.2 mi) S of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.6 km; Vertical 1.2 km
Parameters	Nph = 111; Dmin = 8.2 km; Rmss = 0.85 seconds; Gp = 31° Version =
Event ID	ok 2020wcxr

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Oklahoma Seismic Network
University of Oklahoma

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2020-10-21 14:33:28 (M3.2) Oklahoma 36.3 -97.5 (86843)

M3.2 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.2
Date-Time	21 Oct 2020 14:33:29 UTC 21 Oct 2020 09:33:29 near epicenter 21 Oct 2020 08:33:29 standard time in your timezone
Location	36.284N 97.500W
Depth	1 km
Distances	4.2 km (2.6 mi) WNW of Lucien, Oklahoma 36.2 km (22.4 mi) ESE of Enid, Oklahoma 43.9 km (27.2 mi) WNW of Stillwater, Oklahoma 45.4 km (28.2 mi) N of Guthrie, Oklahoma 90.6 km (56.2 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.3 km; Vertical 1.1 km
Parameters	Nph = 146; Dmin = 23.9 km; Rmss = 0.60 seconds; Gp = 51° Version =
Event ID	ok 2020usgs

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Oklahoma Seismic Network
University of Oklahoma

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2020-10-23 04:08:12 UPDATED: (M3.3) Oklahoma 36.9 -97.4 (86843)

M3.3 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.3
Date-Time	23 Oct 2020 04:08:12 UTC 22 Oct 2020 23:08:12 near epicenter 22 Oct 2020 22:08:12 standard time in your timezone
Location	36.874N 97.447W
Depth	7 km
Distances	7.6 km (4.7 mi) N of Nardin, Oklahoma 37.2 km (23.1 mi) WNW of Ponca City, Oklahoma 41.9 km (26.0 mi) WSW of Arkansas City, Kansas 57.1 km (35.4 mi) SW of Winfield, Kansas 156.2 km (96.8 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 0.0 km; Vertical 0.6 km
Parameters	Nph = 178; Dmin = 0.0 km; Rmss = 0.22 seconds; Gp = 97° Version =
Event ID	ok 2020uvdc ***This event supersedes event US6000cbv9.

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Oklahoma Seismic Network
University of Oklahoma

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2020-10-23 04:08:12 (M3.2) Oklahoma 36.9 -97.4 (86843)

M3.2 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.2
Date-Time	23 Oct 2020 04:08:12 UTC 22 Oct 2020 23:08:12 near epicenter 22 Oct 2020 22:08:12 standard time in your timezone
Location	36.863N 97.441W
Depth	5 km
Distances	6.4 km (4.0 mi) N of Nardin, Oklahoma 36.2 km (22.4 mi) WNW of Ponca City, Oklahoma 42.1 km (26.1 mi) WSW of Arkansas City, Kansas 57.6 km (35.7 mi) SW of Winfield, Kansas 155.0 km (96.1 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.6 km; Vertical 1.3 km
Parameters	Nph = 35; Dmin = 23.1 km; Rmss = 0.26 seconds; Gp = 70° Version =
Event ID	us 6000cbv9

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2020-10-23 01:17:33 (M3.3) Oklahoma 36.9 -97.4 (86843)

M3.3 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.3
Date-Time	23 Oct 2020 01:17:33 UTC 22 Oct 2020 20:17:33 near epicenter 22 Oct 2020 19:17:33 standard time in your timezone
Location	36.899N 97.439W
Depth	0 km
Distances	9.8 km (6.1 mi) WSW of Braman, Oklahoma 38.1 km (23.6 mi) NW of Ponca City, Oklahoma 40.0 km (24.8 mi) WSW of Arkansas City, Kansas 54.6 km (33.9 mi) SW of Winfield, Kansas 159.0 km (98.6 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 2.2 km; Vertical 1.3 km
Parameters	Nph = 123; Dmin = 13.1 km; Rmss = 0.50 seconds; Gp = 141° Version =
Event ID	ok 2020uuxm

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Oklahoma Seismic Network
University of Oklahoma

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2020-10-22 04:37:08 UPDATED: (M3.1) Oklahoma 36.4 -97.3 (86843)

M3.1 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.1
Date-Time	22 Oct 2020 04:37:09 UTC 21 Oct 2020 23:37:09 near epicenter 21 Oct 2020 22:37:09 standard time in your timezone
Location	36.364N 97.344W
Depth	6 km
Distances	9.7 km (6.0 mi) NNW of Perry, Oklahoma 37.7 km (23.4 mi) NW of Stillwater, Oklahoma 44.5 km (27.6 mi) SSW of Ponca City, Oklahoma 48.0 km (29.8 mi) E of Enid, Oklahoma 100.7 km (62.4 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 0.0 km; Vertical 0.5 km
Parameters	Nph = 174; Dmin = 0.0 km; Rmss = 0.35 seconds; Gp = 36° Version =
Event ID	ok 2020utio ***This event supersedes event US6000cb54.

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Oklahoma Seismic Network
University of Oklahoma

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2020-10-22 04:37:09 (M3.2) Oklahoma 36.4 -97.3 (86843)

M3.2 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.2
Date-Time	22 Oct 2020 04:37:09 UTC 21 Oct 2020 23:37:09 near epicenter 21 Oct 2020 22:37:09 standard time in your timezone
Location	36.357N 97.349W
Depth	2 km
Distances	9.3 km (5.7 mi) NW of Perry, Oklahoma 37.4 km (23.2 mi) NW of Stillwater, Oklahoma 45.5 km (28.2 mi) SSW of Ponca City, Oklahoma 47.7 km (29.6 mi) E of Enid, Oklahoma 99.8 km (61.9 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.1 km; Vertical 4.1 km
Parameters	Nph = 57; Dmin = 14.8 km; Rmss = 0.11 seconds; Gp = 37° Version =
Event ID	us 6000cb54

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2020-10-21 14:33:28 (M3.2) Oklahoma 36.3 -97.5 (86843)

M3.2 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.2
Date-Time	21 Oct 2020 14:33:29 UTC 21 Oct 2020 09:33:29 near epicenter 21 Oct 2020 08:33:29 standard time in your timezone
Location	36.284N 97.500W
Depth	1 km
Distances	4.2 km (2.6 mi) WNW of Lucien, Oklahoma 36.2 km (22.4 mi) ESE of Enid, Oklahoma 43.9 km (27.2 mi) WNW of Stillwater, Oklahoma 45.4 km (28.2 mi) N of Guthrie, Oklahoma 90.6 km (56.2 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.3 km; Vertical 1.1 km
Parameters	Nph = 146; Dmin = 23.9 km; Rmss = 0.60 seconds; Gp = 51° Version =
Event ID	ok 2020usgs

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Oklahoma Seismic Network
University of Oklahoma

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2020-09-27 02:20:00 (M3.1) Oklahoma 36.0 -97.8 (86843)

M3.1 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.1
Date-Time	27 Sep 2020 02:20:01 UTC 26 Sep 2020 21:20:01 near epicenter 26 Sep 2020 20:20:01 standard time in your timezone
Location	35.959N 97.759W
Depth	1 km
Distances	13.9 km (8.6 mi) E of Dover, Oklahoma 31.4 km (19.5 mi) WNW of Guthrie, Oklahoma 42.5 km (26.3 mi) NW of Edmond, Oklahoma 49.6 km (30.7 mi) SSE of Enid, Oklahoma 58.8 km (36.5 mi) NNW of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.1 km; Vertical 1.0 km
Parameters	Nph = 170; Dmin = 20.0 km; Rmss = 0.64 seconds; Gp = 23° Version =
Event ID	ok 2020szml

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Oklahoma Seismic Network
University of Oklahoma

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2020-09-20 10:54:54 (M3.4) Oklahoma 36.1 -97.6 (86843)

M3.4 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.4
Date-Time	20 Sep 2020 10:54:54 UTC 20 Sep 2020 05:54:54 near epicenter 20 Sep 2020 04:54:54 standard time in your timezone
Location	36.129N 97.588W
Depth	4 km
Distances	4.4 km (2.7 mi) SE of Marshall, Oklahoma 31.4 km (19.4 mi) NNW of Guthrie, Oklahoma 39.5 km (24.5 mi) SE of Enid, Oklahoma 47.7 km (29.6 mi) W of Stillwater, Oklahoma 73.6 km (45.6 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.6 km; Vertical 1.3 km
Parameters	Nph = 102; Dmin = 9.6 km; Rmss = 0.23 seconds; Gp = 19° Version =
Event ID	ok 2020snix

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Oklahoma Seismic Network
University of Oklahoma

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2020-09-16 09:27:34 (M3.0) Oklahoma 36.3 -98.2 (86843)

M3.0 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.0
Date-Time	16 Sep 2020 09:27:34 UTC 16 Sep 2020 04:27:34 near epicenter 16 Sep 2020 03:27:34 standard time in your timezone
Location	36.278N 98.235W
Depth	4 km
Distances	5.7 km (3.5 mi) NW of Ames, Oklahoma 34.5 km (21.4 mi) WSW of Enid, Oklahoma 85.3 km (52.9 mi) WNW of Guthrie, Oklahoma 86.5 km (53.7 mi) NNW of El Reno, Oklahoma 110.9 km (68.8 mi) NW of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.7 km; Vertical 1.3 km
Parameters	Nph = 103; Dmin = 7.4 km; Rmss = 0.38 seconds; Gp = 49° Version =
Event ID	ok 2020sfya

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Oklahoma Seismic Network
University of Oklahoma

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2020-09-06 11:08:14 (M3.3) Oklahoma 34.7 -97.6 (86843)

M3.3 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.3
Date-Time	6 Sep 2020 11:08:15 UTC 6 Sep 2020 06:08:15 near epicenter 6 Sep 2020 05:08:15 standard time in your timezone
Location	34.739N 97.586W
Depth	2 km
Distances	8.2 km (5.1 mi) SSE of Erin Springs, Oklahoma 43.0 km (26.7 mi) NE of Duncan, Oklahoma 47.3 km (29.3 mi) SE of Chickasha, Oklahoma 55.3 km (34.3 mi) SSW of Norman, Oklahoma 81.1 km (50.3 mi) S of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 2.2 km; Vertical 1.3 km
Parameters	Nph = 81; Dmin = 19.2 km; Rmss = 0.62 seconds; Gp = 69° Version =
Event ID	ok 2020rnuh

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Oklahoma Seismic Network
University of Oklahoma

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2020-08-31 15:18:24 (M3.5) Oklahoma 36.4 -98.1 (86843)

M3.5 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.5
Date-Time	31 Aug 2020 15:18:25 UTC 31 Aug 2020 10:18:25 near epicenter 31 Aug 2020 09:18:25 standard time in your timezone
Location	36.374N 98.144W
Depth	2 km
Distances	3.3 km (2.0 mi) ESE of Meno, Oklahoma 24.0 km (14.9 mi) W of Enid, Oklahoma 84.9 km (52.6 mi) NW of Guthrie, Oklahoma 95.0 km (58.9 mi) N of El Reno, Oklahoma 115.5 km (71.6 mi) NNW of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.3 km; Vertical 1.1 km
Parameters	Nph = 162; Dmin = 20.5 km; Rmss = 0.66 seconds; Gp = 55° Version =
Event ID	ok 2020rddo

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Oklahoma Seismic Network
University of Oklahoma

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2020-08-30 02:35:19 (M3.4) Arkansas 35.8 -93.9 (86843)

M3.4 Earthquake - Arkansas

Preliminary Report

Magnitude	3.4
Date-Time	30 Aug 2020 02:35:20 UTC 29 Aug 2020 21:35:20 near epicenter 29 Aug 2020 20:35:20 standard time in your timezone
Location	35.810N 93.914W
Depth	5 km
Distances	9.0 km (5.6 mi) E of Sunset, Arkansas 35.6 km (22.1 mi) SE of Fayetteville, Arkansas 46.1 km (28.6 mi) SSE of Springdale, Arkansas 57.1 km (35.4 mi) NE of Van Buren, Arkansas 189.1 km (117.2 mi) NW of Little Rock, Arkansas
Location Uncertainty	Horizontal: 9.2 km; Vertical 0.0 km
Parameters	Nph = 24; Dmin = 52.5 km; Rmss = 1.21 seconds; Gp = 239° Version =
Event ID	ok 2020raiw

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Oklahoma Seismic Network
University of Oklahoma

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2020-08-21 03:39:34 (M3.3) Oklahoma 34.9 -98.4 (86843)

M3.3 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.3
Date-Time	21 Aug 2020 03:39:34 UTC 20 Aug 2020 22:39:34 near epicenter 20 Aug 2020 21:39:34 standard time in your timezone
Location	34.907N 98.380W
Depth	5 km
Distances	2.0 km (1.2 mi) NW of Apache, Oklahoma 33.1 km (20.5 mi) N of Lawton, Oklahoma 43.7 km (27.1 mi) WSW of Chickasha, Oklahoma 59.3 km (36.7 mi) NW of Duncan, Oklahoma 100.3 km (62.2 mi) SW of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.8 km; Vertical 0.0 km
Parameters	Nph = 118; Dmin = 15.5 km; Rmss = 1.03 seconds; Gp = 44° Version =
Event ID	ok 2020qjzl

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see: Event Page or USGS Earthquake Hazards Program
Oklahoma Seismic Network
University of Oklahoma

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2020-08-16 02:49:46 (M3.2) Oklahoma 36.2 -97.7 (86843)

M3.2 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.2
Date-Time	16 Aug 2020 02:49:47 UTC 15 Aug 2020 21:49:47 near epicenter 15 Aug 2020 20:49:47 standard time in your timezone
Location	36.159N 97.664W
Depth	2 km
Distances	3.5 km (2.2 mi) W of Marshall, Oklahoma 32.6 km (20.2 mi) SE of Enid, Oklahoma 37.8 km (23.4 mi) NW of Guthrie, Oklahoma 54.7 km (33.9 mi) W of Stillwater, Oklahoma 77.8 km (48.3 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.2 km; Vertical 1.2 km
Parameters	Nph = 144; Dmin = 17.5 km; Rmss = 0.64 seconds; Gp = 25° Version =
Event ID	ok 2020qauh

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
Oklahoma Seismic Network
University of Oklahoma

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2020-08-14 08:27:17 (M3.2) Oklahoma 36.4 -97.4 (86843)

M3.2 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.2
Date-Time	14 Aug 2020 08:27:18 UTC 14 Aug 2020 03:27:18 near epicenter 14 Aug 2020 02:27:18 standard time in your timezone
Location	36.362N 97.355W
Depth	3 km
Distances	10.1 km (6.2 mi) NW of Perry, Oklahoma 38.2 km (23.7 mi) NW of Stillwater, Oklahoma 45.2 km (28.0 mi) SSW of Ponca City, Oklahoma 47.1 km (29.2 mi) E of Enid, Oklahoma 100.4 km (62.2 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.6 km; Vertical 1.2 km
Parameters	Nph = 109; Dmin = 15.7 km; Rmss = 0.46 seconds; Gp = 34° Version =
Event ID	ok 2020pxol

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
Oklahoma Seismic Network
University of Oklahoma

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2020-08-05 10:13:11 (M3.0) Oklahoma 36.3 -98.2 (86843)

M3.0 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.0
Date-Time	5 Aug 2020 10:13:11 UTC 5 Aug 2020 05:13:11 near epicenter 5 Aug 2020 04:13:11 standard time in your timezone
Location	36.305N 98.157W
Depth	2 km
Distances	7.0 km (4.3 mi) NNE of Ames, Oklahoma 27.0 km (16.7 mi) WSW of Enid, Oklahoma 81.1 km (50.3 mi) NW of Guthrie, Oklahoma 87.6 km (54.3 mi) NNW of El Reno, Oklahoma 109.4 km (67.8 mi) NNW of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.4 km; Vertical 1.3 km
Parameters	Nph = 124; Dmin = 27.1 km; Rmss = 0.57 seconds; Gp = 61° Version =
Event ID	ok 2020phgk

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
Oklahoma Seismic Network
University of Oklahoma

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2020-08-03 23:13:45 (M3.4) Oklahoma 36.4 -97.4 (86843)

M3.4 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.4
Date-Time	3 Aug 2020 23:13:46 UTC 3 Aug 2020 18:13:46 near epicenter 3 Aug 2020 17:13:46 standard time in your timezone
Location	36.356N 97.365W
Depth	2 km
Distances	10.1 km (6.3 mi) NW of Perry, Oklahoma 38.3 km (23.8 mi) NW of Stillwater, Oklahoma 46.3 km (28.7 mi) E of Enid, Oklahoma 46.3 km (28.7 mi) SSW of Ponca City, Oklahoma 99.5 km (61.7 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.5 km; Vertical 1.2 km
Parameters	Nph = 120; Dmin = 15.8 km; Rmss = 0.34 seconds; Gp = 33° Version =
Event ID	ok 2020pepd

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
Oklahoma Seismic Network
University of Oklahoma

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2020-07-15 15:07:21 (M3.3) Oklahoma 36.9 -97.4 (86843)

Please take our survey to improve ENS, open until 2020-08-01: https://tinyurl.com/ya46xt96

M3.3 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.3
Date-Time	15 Jul 2020 15:07:22 UTC 15 Jul 2020 10:07:22 near epicenter 15 Jul 2020 09:07:22 standard time in your timezone
Location	36.888N 97.434W
Depth	5 km
Distances	9.2 km (5.7 mi) N of Nardin, Oklahoma 37.1 km (23.0 mi) WNW of Ponca City, Oklahoma 40.2 km (24.9 mi) WSW of Arkansas City, Kansas 55.2 km (34.2 mi) SW of Winfield, Kansas 157.8 km (97.8 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.9 km; Vertical 0.0 km
Parameters	Nph = 162; Dmin = 14.4 km; Rmss = 0.71 seconds; Gp = 125° Version =
Event ID	ok 2020nvgn

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
Oklahoma Seismic Network
University of Oklahoma

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2020-07-04 11:31:16 (M3.0) Oklahoma 34.9 -99.8 (86843)

Please take our survey to improve ENS, open until 2020-08-01: https://tinyurl.com/ya46xt96

M3.0 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.0
Date-Time	4 Jul 2020 11:31:17 UTC 4 Jul 2020 06:31:17 near epicenter 4 Jul 2020 05:31:17 standard time in your timezone
Location	34.889N 99.761W
Depth	10 km
Distances	23.6 km (14.6 mi) W of Mangum, Oklahoma 48.0 km (29.8 mi) NW of Altus, Oklahoma 66.6 km (41.3 mi) SSW of Elk City, Oklahoma 93.2 km (57.8 mi) NNW of Vernon, Texas 214.3 km (132.9 mi) WSW of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 0.0 km; Vertical 0.0 km
Parameters	Nph = 13; Dmin = 37.3 km; Rmss = 1.19 seconds; Gp = 234° Version =
Event ID	ok 2020naww

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
Oklahoma Seismic Network
University of Oklahoma

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2020-06-22 21:48:00 UPDATED: (M3.7) Oklahoma 36.9 -97.4 (8fba2)

M3.7 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.7
Date-Time	22 Jun 2020 21:48:00 UTC 22 Jun 2020 16:48:00 near epicenter 22 Jun 2020 15:48:00 standard time in your timezone
Location	36.869N 97.434W
Depth	7 km
Distances	7.1 km (4.4 mi) N of Nardin, Oklahoma 35.9 km (22.3 mi) WNW of Ponca City, Oklahoma 41.2 km (25.5 mi) WSW of Arkansas City, Kansas 56.7 km (35.1 mi) SW of Winfield, Kansas 155.7 km (96.5 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 0.0 km; Vertical 0.7 km
Parameters	Nph = 181; Dmin = 0.0 km; Rmss = 0.25 seconds; Gp = 100° Version =
Event ID	ok 2020mfte ***This event has been revised.

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
Oklahoma Seismic Network
University of Oklahoma

Disclaimer
This email was sent to david@soonerpolitics.org This is an update to a previous notification for this event

2020-06-22 21:48:00 UPDATED: (M3.7) Oklahoma 36.9 -97.4 (8faee)

M3.7 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.7
Date-Time	22 Jun 2020 21:48:00 UTC 22 Jun 2020 16:48:00 near epicenter 22 Jun 2020 15:48:00 standard time in your timezone
Location	36.869N 97.434W
Depth	7 km
Distances	7.1 km (4.4 mi) N of Nardin, Oklahoma 35.9 km (22.3 mi) WNW of Ponca City, Oklahoma 41.2 km (25.5 mi) WSW of Arkansas City, Kansas 56.7 km (35.1 mi) SW of Winfield, Kansas 155.7 km (96.5 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 0.0 km; Vertical 0.7 km
Parameters	Nph = 181; Dmin = 0.0 km; Rmss = 0.25 seconds; Gp = 100° Version =
Event ID	ok 2020mfte ***This event has been revised.

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
Oklahoma Seismic Network
University of Oklahoma

Disclaimer
This email was sent to dave@soonerpolitics.org This is an update to a previous notification for this event

2020-06-22 21:48:00 UPDATED: (M4.0) Oklahoma 36.9 -97.4 (8faee)

M4.0 Earthquake - Oklahoma

Preliminary Report

Magnitude	4.0
Date-Time	22 Jun 2020 21:48:00 UTC 22 Jun 2020 16:48:00 near epicenter 22 Jun 2020 15:48:00 standard time in your timezone
Location	36.892N 97.430W
Depth	5 km
Distances	9.3 km (5.8 mi) WSW of Braman, Oklahoma 37.0 km (22.9 mi) WNW of Ponca City, Oklahoma 39.6 km (24.6 mi) WSW of Arkansas City, Kansas 54.6 km (33.9 mi) SW of Winfield, Kansas 158.3 km (98.1 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.9 km; Vertical 0.0 km
Parameters	Nph = 163; Dmin = 14.1 km; Rmss = 0.68 seconds; Gp = 118° Version =
Event ID	ok 2020mfte ***This event has been revised.

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
Oklahoma Seismic Network
University of Oklahoma

Disclaimer

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2020-06-22 21:48:00 UPDATED: (M4.0) Oklahoma 36.9 -97.4 (8fba2)

M4.0 Earthquake - Oklahoma

Preliminary Report

Magnitude	4.0
Date-Time	22 Jun 2020 21:48:00 UTC 22 Jun 2020 16:48:00 near epicenter 22 Jun 2020 15:48:00 standard time in your timezone
Location	36.892N 97.430W
Depth	5 km
Distances	9.3 km (5.8 mi) WSW of Braman, Oklahoma 37.0 km (22.9 mi) WNW of Ponca City, Oklahoma 39.6 km (24.6 mi) WSW of Arkansas City, Kansas 54.6 km (33.9 mi) SW of Winfield, Kansas 158.3 km (98.1 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.9 km; Vertical 0.0 km
Parameters	Nph = 163; Dmin = 14.1 km; Rmss = 0.68 seconds; Gp = 118° Version =
Event ID	ok 2020mfte ***This event has been revised.

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
Oklahoma Seismic Network
University of Oklahoma

Disclaimer

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2020-06-22 21:47:59 (M3.4) Oklahoma 36.9 -97.4 (86843)

M3.4 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.4
Date-Time	22 Jun 2020 21:48:00 UTC 22 Jun 2020 16:48:00 near epicenter 22 Jun 2020 15:48:00 standard time in your timezone
Location	36.902N 97.426W
Depth	0 km
Distances	8.6 km (5.3 mi) WSW of Braman, Oklahoma 37.3 km (23.1 mi) NW of Ponca City, Oklahoma 38.8 km (24.1 mi) WSW of Arkansas City, Kansas 53.6 km (33.2 mi) SW of Winfield, Kansas 159.4 km (98.8 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 3.7 km; Vertical 1.7 km
Parameters	Nph = 94; Dmin = 39.1 km; Rmss = 0.38 seconds; Gp = 176° Version =
Event ID	ok 2020mfte

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
Oklahoma Seismic Network
University of Oklahoma

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2020-06-22 19:57:19 (M3.0) Oklahoma 36.7 -97.7 (86843)

M3.0 Earthquake - Oklahoma

Preliminary Report

Magnitude	3.0
Date-Time	22 Jun 2020 19:57:20 UTC 22 Jun 2020 14:57:20 near epicenter 22 Jun 2020 13:57:20 standard time in your timezone
Location	36.703N 97.691W
Depth	5 km
Distances	9.1 km (5.7 mi) ESE of Jefferson, Oklahoma 38.1 km (23.6 mi) NNE of Enid, Oklahoma 54.1 km (33.5 mi) W of Ponca City, Oklahoma 70.5 km (43.7 mi) SW of Arkansas City, Kansas 138.0 km (85.6 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 1.5 km; Vertical 0.0 km
Parameters	Nph = 158; Dmin = 22.3 km; Rmss = 0.77 seconds; Gp = 52° Version =
Event ID	ok 2020mfpn

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
Oklahoma Seismic Network
University of Oklahoma

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2020-06-21 03:15:41 UPDATED: (M4.2) Oklahoma 36.4 -97.4 (8fba2)

M4.2 Earthquake - Oklahoma

Preliminary Report

Magnitude	4.2
Date-Time	21 Jun 2020 03:15:42 UTC 20 Jun 2020 22:15:42 near epicenter 20 Jun 2020 21:15:42 standard time in your timezone
Location	36.359N 97.359W
Depth	7 km
Distances	10.0 km (6.2 mi) NW of Perry, Oklahoma 38.2 km (23.7 mi) NW of Stillwater, Oklahoma 45.7 km (28.4 mi) SSW of Ponca City, Oklahoma 46.8 km (29.0 mi) E of Enid, Oklahoma 99.9 km (61.9 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 0.0 km; Vertical 0.5 km
Parameters	Nph = 179; Dmin = 0.0 km; Rmss = 0.20 seconds; Gp = 35° Version =
Event ID	ok 2020mcmz ***This event has been revised.

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
Oklahoma Seismic Network
University of Oklahoma

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2020-06-21 03:15:41 UPDATED: (M4.2) Oklahoma 36.4 -97.4 (8faee)

M4.2 Earthquake - Oklahoma

Preliminary Report

Magnitude	4.2
Date-Time	21 Jun 2020 03:15:42 UTC 20 Jun 2020 22:15:42 near epicenter 20 Jun 2020 21:15:42 standard time in your timezone
Location	36.359N 97.359W
Depth	7 km
Distances	10.0 km (6.2 mi) NW of Perry, Oklahoma 38.2 km (23.7 mi) NW of Stillwater, Oklahoma 45.7 km (28.4 mi) SSW of Ponca City, Oklahoma 46.8 km (29.0 mi) E of Enid, Oklahoma 99.9 km (61.9 mi) N of Oklahoma City, Oklahoma
Location Uncertainty	Horizontal: 0.0 km; Vertical 0.5 km
Parameters	Nph = 179; Dmin = 0.0 km; Rmss = 0.20 seconds; Gp = 35° Version =
Event ID	ok 2020mcmz ***This event has been revised.

For updates, maps, and technical information
see: Event Page or USGS Earthquake Hazards Program
Oklahoma Seismic Network
University of Oklahoma

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