Wednesday, September 24, 2014

Magnitude 4.5 Earthquake of Valdez, Alaska 2014-09-24

2014-09-24 07:30:56 UTC  : Valdez, Alaska EARTHQUAKE

earthquake monitor,Alaska earthquake, earthquake realtime

Magnitude : 4.5

Event Time: Time and Date Starting of Earthquake Rupture 

  1. 2014-09-24 07:30:56 UTC

  1. 2014-09-23 23:30:56 UTC-08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

  1. 61.366°N 146.796°W

Depth : Depth of starting Rupture 

14.2km (8.8mi)

Region : Valdez, Alaska

Magnitude 4.5 Earthquake of Valdez, Alaska 2014-09-24

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

 a)  35km (22mi) NW of Valdez, Alaska

  b)   148km (92mi) E of Knik-Fairview, Alaska

 c)  165km (103mi) E of Anchorage, Alaska

 d)  386km (240mi) S of Badger, Alaska

  1.  e)  639km (397mi) WNW of Whitehorse, Canada

Location Uncertainty: 
4.5 ml
61.366°N, 146.796°W
± 0.2 km
14.2 km
± 0.8 km
Number of Phase Applied1

Minimum Distance2

Travel Time Residual3
0.89 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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