Sunday, September 28, 2014

Magnitude 2.6 Earthquake of Perry, Oklahoma 2014-09-28

2014-09-28 10:40:37 UTC :Perry, Oklahoma EARTHQUAKE

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Magnitude : 2.6


Event Time: Time and Date Starting of Earthquake Rupture 


  1. 2014-09-28 10:40:37 UTC

  1. 2014-09-28 05:40:37 UTC-05:00 at epicenter



Earthquake data:

Location : Position of Epicenter 

36.380°N 97.157°W


Depth : Depth of starting Rupture 

5.0km (3.1mi)


Region : Perry, Oklahoma



Magnitude 2.6 Earthquake of Perry, Oklahoma 2014-09-28


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

a)  15km (9mi) NE of Perry, Oklahoma

b)  30km (19mi) NNW of Stillwater, Oklahoma


c)  36km (22mi) S of Ponca City, Oklahoma

d)  
60km (37mi) NNE of Guthrie, Oklahoma


e)  106km (66mi) NNE of Oklahoma City, Oklahoma

Location Uncertainty: 
Parameter
Value
Uncertainty
Magnitude
2.6 mb_lg
± 0.08
Location
36.380°N, 97.157°W--
Depth
5.0 km
± 2.0 km
Number of Phase Applied1
21

Minimum Distance2
42.7 km (0.38°)

Travel Time Residual3
0.42 sec
Azimuthal Gap4
69°

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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