Magnitude 3.2 Earthquake of Chitina, Alaska USA 2013 August 03

2013-08-03 14:32:35 UTC : Chitina, Alaska USA EARTHQUAKE

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Magnitude: 3.2

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2013-08-03 14:32:35 UTC

1. 2013-08-03 06:32:35 UTC-08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

61.543°N 141.162°W

Depth : Depth of starting Rupture 

0.0km (0.0mi)

Region : Chitina, Alaska

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

a) 174km (108mi) E of Chitina, Alaska

b) 341km (212mi) WNW of Whitehorse, Canada

c) 448km (278mi) E of Knik-Fairview, Alaska

d) 468km (291mi) E of Anchorage, Alaska

e) 484km (301mi) SE of Badger, Alaska

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.2 Ml	--
Location	61.543°N, 141.162°W	± 0.3 km
Depth	0.0 km	± 0.3 km
Number of Phase Applied1	34
Minimum Distance2	30.1 km (0.27°)
Travel Time Residual3	0.8 sec
Azimuthal Gap4	58°

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)