Magnitude 2.9 Earthquake of Luther, Oklahoma 2015-05-07

2015-05-07 02:48:50 (UTC) :East-SouthEast of Luther, Oklahoma

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Magnitude : 2.9

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-05-07 02:48:50 (UTC)

Earthquake data:

Location : Position of Epicenter 

35.618°N 97.059°W

Depth : Depth of starting Rupture 

5.0 km

Region :  Luther, Oklahoma

Directions and Distances :Directions and Distances from Geographical Reference in Close Proximity Which can be effected by Location Uncertainty

a) 13km (8mi) ESE of Luther, Oklahoma

b) 23km (14mi) NE of Choctaw, Oklahoma

c) 34km (21mi) NNW of Shawnee, Oklahoma

d) 35km (22mi) ENE of Midwest City, Oklahoma

e) 44km (27mi) ENE of Oklahoma City, Oklahoma

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.9 mb_lg	± 0.1
Location	35.618°N 97.059°W	± 1.7 km
Depth	5.0 km	± 1.8
Number of Phase Applied1	37
Minimum Distance2	6.35 km (0.06°)
Travel Time Residual3	0.70 sec
Azimuthal Gap4	98°

¹Number of phase Applied: 

In determining location of hypocenter, applied number of observations on P waves and S waves. The greater the more accurate prediction of EQ.

²Minimum Distance:

 Horizontal distance of nearest Station measured in Km from epicenter. The smaller the more accuracy in prediction of depth of EQ.

³Travel Time Residual:

 A way of measurement of fit of arrival time observed to arrival time predicted for particular location. The smaller the better fit of data.

⁴Azimuthal Gap: 

Expressed in degree; the smaller the smaller the error in horizontal positioning of EQ. Large uncertainty is considered when exceeds 180° (both depth and location)

Magnitude 4.1 Earthquake of Perry, Oklahoma 2015-04-29

2015-04-29 16:42:26 (UTC) :West of Perry, Oklahoma

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Magnitude : 4.1

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-04-29 16:42:26 (UTC)

Earthquake data:

Location : Position of Epicenter 

36.289°N 97.527°W

Depth : Depth of starting Rupture 

2.2 km

Region : West of Perry, Oklahoma

Directions and Distances :Directions and Distances from Geographical Reference in Close Proximity Which can be effected by Location Uncertainty

a) 21km (13mi) W of Perry, Oklahoma

b) 33km (21mi) ESE of Enid, Oklahoma

c) 46km (29mi) WNW of Stillwater, Oklahoma

d) 46km (29mi) NNW of Guthrie, Oklahoma

e) 91km (57mi) N of Oklahoma City, Oklahoma

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.1 mb_lg	± 0.0
Location	36.289°N 97.527°W	± 1.1 km
Depth	2.2 km	± 7.9
Number of Phase Applied1	38
Minimum Distance2	47.42 km (0.43°)
Travel Time Residual3	0.22 sec
Azimuthal Gap4	61°

¹Number of phase Applied: 

In determining location of hypocenter, applied number of observations on P waves and S waves. The greater the more accurate prediction of EQ.

²Minimum Distance:

 Horizontal distance of nearest Station measured in Km from epicenter. The smaller the more accuracy in prediction of depth of EQ.

³Travel Time Residual:

 A way of measurement of fit of arrival time observed to arrival time predicted for particular location. The smaller the better fit of data.

⁴Azimuthal Gap: 

Expressed in degree; the smaller the smaller the error in horizontal positioning of EQ. Large uncertainty is considered when exceeds 180° (both depth and location)

Magnitude 4.1 Earthquake of Langston, Oklahom 2015-04-27

2015-04-27 22:22:17 (UTC) :West of Langston, Oklahom

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Magnitude : 4.1

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-04-27 22:22:17 (UTC)

Earthquake data:

Location : Position of Epicenter 

35.949°N 97.347°W

Depth : Depth of starting Rupture 

4.2 km

Region : Langston, Oklahom

Directions and Distances :Directions and Distances from Geographical Reference in Close Proximity Which can be effected by Location Uncertainty

a) 8km (5mi) W of Langston, Oklahoma

b) 10km (6mi) NE of Guthrie, Oklahoma

c) 31km (19mi) SW of Stillwater, Oklahoma

d) 34km (21mi) NNE of Edmond, Oklahoma

e) 55km (34mi) NNE of Oklahoma City, Oklahoma

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.1 mwr	± 0.0
Location	35.949°N 97.347°W	± 1.5 km
Depth	4.2 km	± 8.2
Number of Phase Applied1	33
Minimum Distance2	19.48 km (0.17°)
Travel Time Residual3	0.25 sec
Azimuthal Gap4	72°

¹Number of phase Applied: 

In determining location of hypocenter, applied number of observations on P waves and S waves. The greater the more accurate prediction of EQ.

²Minimum Distance:

 Horizontal distance of nearest Station measured in Km from epicenter. The smaller the more accuracy in prediction of depth of EQ.

³Travel Time Residual:

 A way of measurement of fit of arrival time observed to arrival time predicted for particular location. The smaller the better fit of data.

⁴Azimuthal Gap: 

Expressed in degree; the smaller the smaller the error in horizontal positioning of EQ. Large uncertainty is considered when exceeds 180° (both depth and location)

Magnitude 3.3 Earthquake of Guthrie, Oklahoma 2015-04-24

2015-04-24 22:23:42 (UTC) :South of Guthrie, Oklahoma

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Magnitude : 3.3

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-04-24 22:23:42 (UTC)

Earthquake data:

Location : Position of Epicenter 

35.778°N 97.405°W

Depth : Depth of starting Rupture 

6.0 km

Region : Guthrie, Oklahoma

Directions and Distances :Directions and Distances from Geographical Reference in Close Proximity Which can be effected by Location Uncertainty

a) 11km (7mi) S of Guthrie, Oklahoma

b) 15km (9mi) NNE of Edmond, Oklahoma

c) 33km (21mi) NNW of Choctaw, Oklahoma

d) 34km (21mi) NE of Warr Acres, Oklahoma

e) 35km (22mi) NNE of Oklahoma City, Oklahoma

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.3 mb_lg	± 0.0
Location	35.778°N 97.405°W	± 3.2 km
Depth	6.0 km	± 7.5
Number of Phase Applied1	39
Minimum Distance2	4.90 km (0.04°)
Travel Time Residual3	0.59 sec
Azimuthal Gap4	60°

¹Number of phase Applied: 

In determining location of hypocenter, applied number of observations on P waves and S waves. The greater the more accurate prediction of EQ.

²Minimum Distance:

 Horizontal distance of nearest Station measured in Km from epicenter. The smaller the more accuracy in prediction of depth of EQ.

³Travel Time Residual:

 A way of measurement of fit of arrival time observed to arrival time predicted for particular location. The smaller the better fit of data.

⁴Azimuthal Gap: 

Expressed in degree; the smaller the smaller the error in horizontal positioning of EQ. Large uncertainty is considered when exceeds 180° (both depth and location)

Magnitude 3.7 Earthquake of Medford, Oklahoma 2015-04-23

2015-04-23 06:20:40 (UTC) :South-SouthEast of Medford, Oklahoma

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Magnitude : 3.7

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-04-23 06:20:40 (UTC)

Earthquake data:

Location : Position of Epicenter 

36.609°N 97.654°W

Depth : Depth of starting Rupture 

1.2 km

Region : Medford, Oklahoma

Directions and Distances :Directions and Distances from Geographical Reference in Close Proximity Which can be effected by Location Uncertainty

a) 23km (14mi) SSE of Medford, Oklahoma

b) 31km (19mi) NE of Enid, Oklahoma

c) 51km (32mi) WSW of Ponca City, Oklahoma

d) 74km (46mi) SW of Arkansas City, Kansas

e) 127km (79mi) N of Oklahoma City, Oklahoma

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.7 mwr	± 0.0
Location	36.609°N 97.654°W	± 1.7 km
Depth	1.2 km	± 6.9
Number of Phase Applied1	35
Minimum Distance2	31.73 km (0.28°)
Travel Time Residual3	0.23 sec
Azimuthal Gap4	59°

¹Number of phase Applied: 

In determining location of hypocenter, applied number of observations on P waves and S waves. The greater the more accurate prediction of EQ.

²Minimum Distance:

 Horizontal distance of nearest Station measured in Km from epicenter. The smaller the more accuracy in prediction of depth of EQ.

³Travel Time Residual:

 A way of measurement of fit of arrival time observed to arrival time predicted for particular location. The smaller the better fit of data.

⁴Azimuthal Gap: 

Expressed in degree; the smaller the smaller the error in horizontal positioning of EQ. Large uncertainty is considered when exceeds 180° (both depth and location)

Magnitude 3.7 Earthquake of Medford, Oklahoma 2015-04-20

2015-04-20 12:08:31 (UTC) :West of Medford, Oklahoma

earthquake monitor, Oklahoma earthquake, earthquake realtime

Magnitude : 3.7

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-04-20 12:08:31 (UTC)

Earthquake data:

Location : Position of Epicenter 

36.822°N 97.861°W

Depth : Depth of starting Rupture 

2.4 km

Region : Medford, Oklahoma

Directions and Distances :Directions and Distances from Geographical Reference in Close Proximity Which can be effected by Location Uncertainty

a) 11km (7mi) W of Medford, Oklahoma

b) 47km (29mi) N of Enid, Oklahoma

c) 70km (43mi) W of Ponca City, Oklahoma

d) 77km (48mi) WSW of Arkansas City, Kansas

e) 153km (95mi) NNW of Oklahoma City, Oklahoma

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.7 mb_lg	± 0.1
Location	36.822°N 97.861°W	± 1.5 km
Depth	2.4 km	± 7.8
Number of Phase Applied1	73
Minimum Distance2	3.23 km (0.03°)
Travel Time Residual3	0.65 sec
Azimuthal Gap4	36°

¹Number of phase Applied: 

In determining location of hypocenter, applied number of observations on P waves and S waves. The greater the more accurate prediction of EQ.

²Minimum Distance:

 Horizontal distance of nearest Station measured in Km from epicenter. The smaller the more accuracy in prediction of depth of EQ.

³Travel Time Residual:

 A way of measurement of fit of arrival time observed to arrival time predicted for particular location. The smaller the better fit of data.

⁴Azimuthal Gap: 

Expressed in degree; the smaller the smaller the error in horizontal positioning of EQ. Large uncertainty is considered when exceeds 180° (both depth and location)