Magnitude 2.7 Earthquake of Medford, Oklahoma 2014-08-10

2014-08-10 14:19:15 UTC :Medford, Oklahoma EARTHQUAKE

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Magnitude: 2.7

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-08-10 14:19:15 UTC

1. 2014-08-10 09:19:15 UTC-05:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

36.838°N 97.844°W

Depth : Depth of starting Rupture 

3.5km (2.2mi)

Region : Medford, Oklahoma

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

a)  10km (6mi) WNW of Medford, Oklahoma

b)  49km (30mi) N of Enid, Oklahoma

c)  69km (43mi) WNW of Ponca City, Oklahoma

d)  75km (47mi) WSW of Arkansas City, Kansas

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

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.7 mb_lg	± 0.07
Location	36.838°N, 97.844°W	--
Depth	3.5 km	± 7.4 km
Number of Phase Applied1	39
Minimum Distance2	18.7 km (0.17°)
Travel Time Residual3	0.21 sec
Azimuthal Gap4	79°

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)