Magnitude 3.0 Earthquake of Chignik Lake, Alaska 2014-09-14

2014-09-14 14:48:06 UTC  : Chignik Lake, Alaska EARTHQUAKE

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Magnitude : 3.0

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-14 14:48:06 UTC

1. 2014-09-14 06:48:06 UTC-08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

1. 56.265°N 157.195°W

Depth : Depth of starting Rupture 

106.8km (66.4mi)

Region : Chignik Lake, Alaska

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

a)  97km (60mi) E of Chignik Lake, Alaska

b)    694km (431mi) SW of Anchorage, Alaska

c)  729km (453mi) SW of Knik-Fairview, Alaska

1. 
   

d)  1084km (674mi) SSW of Fairbanks, Alaska

1. e)  1375km (854mi) WSW of Whitehorse, Canada

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.0 ml	--
Location	56.265°N, 157.195°W	± 1.2 km
Depth	106.8 km	± 1.3 km
Number of Phase Applied1	15
Minimum Distance2	--
Travel Time Residual3	1.2 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)