Magnitude 2.6 Earthquake of Helena, Oklahoma 2014-09-07

2014-09-07 18:15:32 UTC :Helena, Oklahoma EARTHQUAKE

earthquake monitor,Oklahoma earthquake, earthquake realtime

Magnitude : 2.6

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-07 18:15:32 UTC

1. 2014-09-07 13:15:32 UTC-05:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

36.554°N 98.389°W

Depth : Depth of starting Rupture 

9.4km (5.8mi)

Region : Helena, Oklahoma

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

a)  10km (6mi) W of Helena, Oklahoma

b)  49km (30mi) WNW of Enid, Oklahoma

c)  90km (56mi) E of Woodward, Oklahoma

d)  114km (71mi) NW of Guthrie, Oklahoma

e)  143km (89mi) NNW of Oklahoma City, Oklahoma

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.6 mb_lg	± 0.08
Location	36.554°N, 98.389°W	--
Depth	9.4 km	± 7.1 km
Number of Phase Applied1	25
Minimum Distance2	36.7 km (0.33°)
Travel Time Residual3	0.69 sec
Azimuthal Gap4	102°

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)