Magnitude 3.1 Earthquake of Guthrie, Oklahoma 2014-08-03

2014-08-03 04:57:57 UTC :Guthrie, Oklahoma EARTHQUAKE

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Magnitude: 3.1

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-08-03 04:57:57 UTC

1. 2014-08-02 23:57:57 UTC-05:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

35.802°N 97.513°W

Depth : Depth of starting Rupture 

6.7km (4.2mi)

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) SW of Guthrie, Oklahoma

b)  16km (10mi) N of Edmond, Oklahoma

c)  32km (20mi) NNE of Warr Acres, Oklahoma

d)  33km (21mi) NNE of Bethany, Oklahoma

e)  37km (23mi) N of Oklahoma City, Oklahoma

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.1 mb_lg	± 0.05
Location	35.802°N, 97.513°W	--
Depth	6.7 km	± 6.3 km
Number of Phase Applied1	34
Minimum Distance2	5.2 km (0.05°)
Travel Time Residual3	0.54 sec
Azimuthal Gap4	71°

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)