Sunday, July 13, 2014

Magnitude 4.1 Earthquake of Amatignak Island, Alaska 2014-07-13

2014-07-13 12:07:05 UTC : Amatignak Island, Alaska EARTHQUAKE

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Magnitude: 4.1


Event Time: Time and Date Starting of Earthquake Rupture 


  1. 2014-07-13 12:07:05 UTC

  1. 2014-07-14 00:07:05 UTC+12:00 at epicenter


Earthquake data:

Location : Position of Epicenter 

50.310°N 178.781°E

Depth : Depth of starting Rupture 

34.9km (21.7mi)


Region : Amatignak Island, Alaska
Magnitude 4.1 Earthquake of Amatignak Island, Alaska 2014-07-13


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

a) 182km (113mi) SW of Amatignak Island, Alaska

b) 1420km (882mi) E of Petropavlovsk-Kamchatskiy, Russia

c) 1436km (892mi) E of Vilyuchinsk, Russia

d) 
1439km (894mi) E of Yelizovo, Russia


e) 3060km (1901mi) W of Whitehorse, Canada

Location Uncertainty: 
Parameter
Value
Uncertainty
Magnitude
4.1 mb
± 0.08
Location
50.310°N, 178.782°E
--
Depth
34.9 km
± 4.8 km
Number of Phase Applied1
64

Minimum Distance2
124.5 km (1.12°)

Travel Time Residual3
1.09 sec

Azimuthal Gap4
91°

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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