Magnitude 2.7 Earthquake of Cherokee, Oklahoma 2014-09-17

2014-09-17 19:05:15 UTC :Cherokee, Oklahoma EARTHQUAKE

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Magnitude : 2.7

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-17 19:05:15 UTC

1. 2014-09-17 14:05:15 UTC-05:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

36.755°N 98.091°W

Depth : Depth of starting Rupture 

4.7km (2.9mi)

Region : Cherokee, Oklahoma

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

a)  23km (14mi) E of Cherokee, Oklahoma

b)  44km (27mi) NNW of Enid, Oklahoma

c)  89km (55mi) W of Ponca City, Oklahoma

d)  99km (62mi) WSW of Arkansas City, Kansas

e)  151km (94mi) NNW of Oklahoma City, Oklahoma

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.7 ml	--
Location	36.755°N, 98.091°W	--
Depth	4.7 km	± 7.1 km
Number of Phase Applied1	0
Minimum Distance2	--
Travel Time Residual3	0.91 sec
Azimuthal Gap4	100°

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)