Tuesday, September 23, 2014

Magnitude 3.1 Earthquake of Medford, Oklahoma 2014-09-23

2014-09-23 03:45:49 UTC :Medford, Oklahoma EARTHQUAKE

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Magnitude : 3.1


Event Time: Time and Date Starting of Earthquake Rupture 


  1. 2014-09-23 03:45:49 UTC

  1. 2014-09-22 22:45:49 UTC-05:00 at epicenter


Earthquake data:

Location : Position of Epicenter 

36.804°N 97.976°W


Depth : Depth of starting Rupture 

5.0km (3.1mi)


Region : Medford, Oklahoma



Magnitude 3.1 Earthquake of Medford, Oklahoma 2014-09-23




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

a)  21km (13mi) W of Medford, Oklahoma

b)  46km (29mi) N of Enid, Oklahoma

c)  80km (50mi) W of Ponca City, Oklahoma

d)  
88km (55mi) WSW of Arkansas City, Kansas


e)  153km (95mi) NNW of Oklahoma City, Oklahoma

Location Uncertainty: 
Parameter
Value
Uncertainty
Magnitude
3.1 mb_lg
± 0.06
Location
36.804°N, 97.976°W--
Depth
5.0 km
± 2.0 km
Number of Phase Applied1
26

Minimum Distance2
33.2 km (0.30°)

Travel Time Residual3
0.77 sec

Azimuthal Gap4
97°

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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