Magnitude 2.7 Earthquake of Perry, Oklahoma 2014-08-05

2014-08-05 21:01:08 UTC :Perry, Oklahoma EARTHQUAKE

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Magnitude: 2.7

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-08-05 21:01:08 UTC

1. 2014-08-05 16:01:08 UTC-05:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

36.285°N 97.498°W

Depth : Depth of starting Rupture 

5.0km (3.1mi)

Region : Perry, Oklahoma

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

a)  18km (11mi) W of Perry, Oklahoma

b)  36km (22mi) ESE of Enid, Oklahoma

c)  43km (27mi) WNW of Stillwater, Oklahoma

d)  45km (28mi) N of Guthrie, Oklahoma

e)  90km (56mi) N of Oklahoma City, Oklahoma

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.7 mb_lg	± 0.08
Location	36.285°N, 97.498°W	--
Depth	5.0 km	± 2.0 km
Number of Phase Applied1	39
Minimum Distance2	24.6 km (0.22°)
Travel Time Residual3	0.65 sec
Azimuthal Gap4	48°

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)