Magnitude 2.8 Earthquake of Enid, Oklahoma 2014-09-06

2014-09-06 01:52:48 UTC :Enid, Oklahoma EARTHQUAKE

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Magnitude: 2.8

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-06 01:52:48 UTC

1. 2014-09-05 20:52:48 UTC-05:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

36.591°N 97.809°W

Depth : Depth of starting Rupture 

4.1km (2.6mi)

Region :Enid, Oklahoma

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

a)  22km (14mi) NNE of Enid, Oklahoma

b)  65km (40mi) W of Ponca City, Oklahoma

c)  85km (53mi) NW of Stillwater, Oklahoma

d)  86km (53mi) SW of Arkansas City, Kansas

e)  127km (79mi) NNW of Oklahoma City, Oklahoma

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.8 mb_lg	± 0.07
Location	36.591°N, 97.809°W	--
Depth	4.1 km	± 6.4 km
Number of Phase Applied1	36
Minimum Distance2	18.3 km (0.16°)
Travel Time Residual3	0.56 sec
Azimuthal Gap4	68°

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)