Saturday, July 12, 2014

Magnitude 4.3 Earthquake of Langston, Oklahoma 2014-07-12

2014-07-12 17:11:47 UTC  : Langston, Oklahoma EARTHQUAKE

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Magnitude: 4.3


Event Time: Time and Date Starting of Earthquake Rupture 


  1. 2014-07-12 17:11:47 UTC


  1. 2014-07-12 12:11:47 UTC-05:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

35.874°N 97.273°W

Depth : Depth of starting Rupture 

6.2km (3.8mi)


Region : Langston, Oklahoma
Magnitude 4.3 Earthquake of Langston, Oklahoma 2014-07-12

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

a) 8km (5mi) SSW of Langston, Oklahoma

b)  13km (8mi) E of Guthrie, Oklahoma

c) 30km (19mi) NE of Edmond, Oklahoma

d) 33km (21mi) SW of Stillwater, Oklahoma
 
e) 50km (31mi) NNE of Oklahoma City, Oklahoma

Location Uncertainty: 
Parameter
Value
Uncertainty
Magnitude
4.3 mb_lg
± 0.04
Location
35.874°N, 97.273°W
--
Depth
6.2 km
± 6.9 km
Number of Phase Applied1
77

Minimum Distance2
18.0 km (0.16°)

Travel Time Residual3
0.69 sec

Azimuthal Gap4
29°

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)

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