Magnitude 2.8 Earthquake of Anthony, Kansas 2014-08-27

2014-08-27 15:11:25 UTC : Anthony, Kansas EARTHQUAKE

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Magnitude: 2.8

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-08-27 15:11:25 UTC
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1. 2014-08-27 10:11:25 UTC-05:00 at epicenter

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Earthquake data:

Location : Position of Epicenter 

37.045°N 97.852°W

Depth : Depth of starting Rupture 

5.0km (3.1mi)

Region : Anthony, Kansas

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

a)  19km (12mi) SE of Anthony, Kansas

b)  72km (45mi) N of Enid, Oklahoma

c)  72km (45mi) W of Arkansas City, Kansas

d)  72km (45mi) SW of Haysville, Kansas

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e)  177km (110mi) N of Oklahoma City, Oklahoma

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.8 mb_lg	± 0.08
Location	37.046°N, 97.852°W	--
Depth	5.0 km	± 1.9 km
Number of Phase Applied1	35
Minimum Distance2	17.0 km (0.15°)
Travel Time Residual3	0.35 sec
Azimuthal Gap4	56°

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)