Magnitude 2.6 Earthquake of Medford, Oklahoma 2014-08-11

2014-08-11 04:18:50 UTC :Medford, Oklahoma EARTHQUAKE

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Magnitude: 2.6

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-08-11 04:18:50 UTC

1. 2014-08-10 23:18:50 UTC-05:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

36.802°N 98.019°W

Depth : Depth of starting Rupture 

1.0km (0.6mi)

Region : Medford, Oklahoma

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

a)  25km (16mi) W of Medford, Oklahoma

b)  46km (29mi) NNW of Enid, Oklahoma

c)  84km (52mi) W of Ponca City, Oklahoma

d)  91km (57mi) WSW of Arkansas City, Kansas

e)  154km (96mi) NNW of Oklahoma City, Oklahoma

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.6 mb_lg	± 0.09
Location	36.802°N, 98.019°W	--
Depth	1.0 km	± 2.6 km
Number of Phase Applied1	34
Minimum Distance2	33.2 km (0.30°)
Travel Time Residual3	0.70 sec
Azimuthal Gap4	84°

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)