Magnitude 2.8 Earthquake of Cantwell, Alaska 2014-09-07

2014-09-07 11:51:07 UTC  : Cantwell, Alaska EARTHQUAKE

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Magnitude : 2.8

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-07 11:51:07 UTC

1. 2014-09-07 03:51:07 UTC-08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

1. 63.129°N 150.409°W

Depth : Depth of starting Rupture 

102.2km (63.5mi)

Region : Cantwell, Alaska

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

 a)  78km (48mi) WSW of Cantwell, Alaska

 b)    184km (114mi) NNW of Knik-Fairview, Alaska

 c)  214km (133mi) N of Anchorage, Alaska

1. 
   

 d)  231km (144mi) SW of Fairbanks, Alaska

1.  e)  847km (526mi) WNW of Whitehorse, Canada

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.8 ml	--
Location	63.129°N, 150.409°W	± 0.3 km
Depth	102.2 km	± 0.5 km
Number of Phase Applied1	71
Minimum Distance2	--
Travel Time Residual3	0.58 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)