Magnitude 3.6 Earthquake of Redoubt Volcano, Alaska 2014-09-01

2014-09-01 20:35:55 UTC  : Redoubt Volcano, Alaska EARTHQUAKE

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Magnitude : 3.6

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-01 20:35:55 UTC

1. 2014-09-01 12:35:55 UTC-08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

1. 60.029°N 152.755°W

Depth : Depth of starting Rupture 

100.0km (62.1mi)

Region : Redoubt Volcano, Alaska

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

 a)  50km (31mi) S of Redoubt Volcano, Alaska

 b)    204km (127mi) SW of Anchorage, Alaska

 c)  238km (148mi) SW of Knik-Fairview, Alaska

1. 
   

 d)  595km (370mi) SSW of Fairbanks, Alaska

1.  e)  976km (606mi) W of Whitehorse, Canada

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.6 ml	--
Location	60.029°N, 152.755°W	± 0.4 km
Depth	100.0 km	100.0 km
Number of Phase Applied1	98
Minimum Distance2	--
Travel Time Residual3	0.72 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)