Friday, July 25, 2014

Magnitude 5.9 Earthquake of Gustavus, Alaska 2014-07-25

2014-07-25 10:54:49UTC  : Gustavus, Alaska EARTHQUAKE

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Magnitude: 5.9


Event Time: Time and Date Starting of Earthquake Rupture 


  1. 2014-07-25 10:54:49 UTC


  1. 2014-07-25 02:54:49 UTC-08:00 at epicenter


Earthquake data:

Location : Position of Epicenter 

58.358°N 137.130°W


Depth : Depth of starting Rupture 

10.0km (6.2mi)


Region : Gustavus, Alaska


Magnitude 5.9 Earthquake of Gustavus, Alaska 2014-07-25





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

a)  81km (50mi) W of Gustavus, Alaska

b)    158km (98mi) W of Juneau, Alaska

c)  287km (178mi) SSW of Whitehorse, Canada

d)  615km (382mi) NW of Prince Rupert, Canada


 e) 677km (421mi) NW of Terrace, Canada

Location Uncertainty: 
Parameter
Value
Uncertainty
Magnitude
5.9 mwp
± 0.01
Location
58.358°N, 137.130°W
--
Depth
10.0 km
± 1.8 km
Number of Phase Applied1
200

Minimum Distance2
135.3 km (1.22°)

Travel Time Residual3
1.11 sec

Azimuthal Gap4
56°

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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