Magnitude 3.1 Earthquake of Cantwell, Alaska 2014-08-25

2014-08-25 22:24:53 UTC  : Cantwell, Alaska EARTHQUAKE

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Magnitude: 3.1

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-08-25 22:24:53 UTC

1. 2014-08-25 14:24:53 UTC-08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

1. 63.547°N 147.321°W

Depth : Depth of starting Rupture 

0.1km (0.1mi)

Region : Cantwell, Alaska

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

 a) 83km (52mi) ENE of Cantwell, Alaska

 b)   140km (87mi) S of Badger, Alaska

 c) 145km (90mi) S of Fairbanks, Alaska

1. 
   

 d) 147km (91mi) S of College, Alaska

1.  e) 711km (442mi) WNW of Whitehorse, Canada

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.1 ml	--
Location	63.547°N, 147.321°W	± 0.3 km
Depth	0.1 km	± 0.3 km
Number of Phase Applied1	36
Minimum Distance2	--
Travel Time Residual3	0.62 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)