Magnitude 3.4 Earthquake of Gustavus, Alaska 2014-09-09

2014-09-09 01:41:17 UTC  : Gustavus, Alaska EARTHQUAKE

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Magnitude : 3.4

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-09 01:41:17 UTC

1. 2014-09-08 17:41:17 UTC-08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

1. 58.301°N 136.909°W

Depth : Depth of starting Rupture 

28.3km (17.6mi)

Region : Gustavus, Alaska

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

 a)  69km (43mi) W of Gustavus, Alaska

 b)    145km (90mi) W of Juneau, Alaska

 c)  288km (179mi) SSW of Whitehorse, Canada

1. 
   

 d)  602km (374mi) NW of Prince Rupert, Canada

1.  e)  662km (411mi) NW of Terrace, Canada

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.4 ml	--
Location	58.301°N, 136.909°W	± 0.6 km
Depth	28.3 km	± 1.9 km
Number of Phase Applied1	46
Minimum Distance2	--
Travel Time Residual3	0.96 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)