Magnitude 3.3 Earthquake of Medford, Oklahoma 2014-08-05

2014-08-05 17:09:57 UTC :Medford, Oklahoma EARTHQUAKE

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Magnitude: 3.3

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-08-05 17:09:57 UTC

1. 2014-08-05 12:09:57 UTC-05:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

36.827°N 98.003°W

Depth : Depth of starting Rupture 

10.9km (6.7mi)

Region : Medford, Oklahoma

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

a)  24km (15mi) W of Medford, Oklahoma

b)  49km (30mi) NNW of Enid, Oklahoma

c)  82km (51mi) W of Ponca City, Oklahoma

d)  89km (55mi) WSW of Arkansas City, Kansas

e)  157km (98mi) NNW of Oklahoma City, Oklahoma

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.3 mb_lg	± 0.05
Location	36.827°N, 98.003°W	--
Depth	10.9 km	± 8.1 km
Number of Phase Applied1	85
Minimum Distance2	33.3 km (0.30°)
Travel Time Residual3	1.08 sec
Azimuthal Gap4	34°

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)