Magnitude 3.5 Earthquake of Old Iliamna, Alaska USA 2013 May 27

2013-05-27 00:06:58 UTC : Old Iliamna, Alaska USA EARTHQUAKE

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Magnitude: 3.5

Event Time: Time and Date Starting of Earthquake Rupture 

2013-05-27 00:06:58 UTC

2013-05-26 16:06:58 UTC-08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

59.824°N 153.601°W

Depth : Depth of starting Rupture 

131.3km (81.6mi)

Region : Old Iliamna, Alaska

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

a) 74km (46mi) E of Old Iliamna, Alaska

b) 255km (158mi) SW of Anchorage, Alaska

c) 288km (179mi) SW of Knik-Fairview, Alaska

d) 635km (395mi) SSW of Fairbanks, Alaska

e) 1027km (638mi) W of Whitehorse, Canada

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.5 Ml	--
Location	59.824°N, 153.601°W	± 0.5 km
Depth	131.3 km	± 0.4 km
Number of Phase Applied1	62
Minimum Distance2	--
Travel Time Residual3	0.73 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)