Magnitude 2.6 Earthquake of Guthrie, Oklahoma 2015-04-14

2015-04-14 05:15:43 (UTC) :South-SouthWest of Guthrie, Oklahoma

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Magnitude : 2.6

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-04-14 05:15:43 (UTC)

Earthquake data:

Location : Position of Epicenter 

35.836°N 97.449°W

Depth : Depth of starting Rupture 

2.5 km

Region : Guthrie, Oklahoma

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

a) 5km (3mi) SSW of Guthrie, Oklahoma

b) 20km (12mi) N of Edmond, Oklahoma

c) 38km (24mi) NNE of Bethany, Oklahoma

d) 38km (24mi) NNE of Warr Acres, Oklahoma

e) 41km (25mi) N of Oklahoma City, Oklahoma

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.6 mb_lg	± 0.1
Location	35.836°N 97.449°W	± 1.0 km
Depth	2.5 km	± 3.8
Number of Phase Applied1	24
Minimum Distance2	4.34 km (0.04°)
Travel Time Residual3	0.45 sec
Azimuthal Gap4	102°

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)