Magnitude 3.2 Earthquake of Medford, Oklahoma 2014-08-07

2014-08-07 16:39:22 UTC :Medford, Oklahoma EARTHQUAKE

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Magnitude: 3.2

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-08-07 16:39:22 UTC

1. 2014-08-07 11:39:22 UTC-05:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

36.817°N 97.984°W

Depth : Depth of starting Rupture 

3.9km (2.4mi)

Region : Medford, Oklahoma

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

a)  22km (14mi) W of Medford, Oklahoma

b)  47km (29mi) NNW of Enid, Oklahoma

c)  81km (50mi) W of Ponca City, Oklahoma

d)  88km (55mi) WSW of Arkansas City, Kansas

e)  155km (96mi) NNW of Oklahoma City, Oklahoma

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.2 mb_lg	± 0.05
Location	36.817°N, 97.984°W	--
Depth	3.9 km	± 7.2 km
Number of Phase Applied1	85
Minimum Distance2	34.6 km (0.31°)
Travel Time Residual3	0.47 sec
Azimuthal Gap4	37°

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)