Friday, September 26, 2014

Magnitude 6.2 Earthquake of Willow, Alaska 2014-09-25

2014-09-25 17:51:17 UTC  : Willow, Alaska EARTHQUAKE

earthquake monitor,Alaska earthquake, earthquake realtime

Magnitude : 6.2

Event Time: Time and Date Starting of Earthquake Rupture 

  1. 2014-09-25 17:51:17 UTC

  1. 2014-09-25 09:51:17 UTC-08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

  1. 61.965°N 151.794°W

Depth : Depth of starting Rupture 

101.7km (63.2mi)

Region : Willow, Alaska

Magnitude 6.2 Earthquake of Willow, Alaska 2014-09-25

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

 a)  95km (59mi) WNW of Willow, Alaska

  b)   126km (78mi) WNW of Knik-Fairview, Alaska

 c)  130km (81mi) NW of Anchorage, Alaska

 d)  378km (235mi) SSW of College, Alaska

  1.  e)  904km (562mi) WNW of Whitehorse, Canada

Location Uncertainty: 
6.2 mwb
± 0.06
61.966°N, 151.794°W
101.7 km
± 5.0 km
Number of Phase Applied1

Minimum Distance2
13.8 km (0.12°)

Travel Time Residual3
1.22 sec

Azimuthal Gap4

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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