Magnitude 5.2 Earthquake of Little Sitkin Island, Alaska 2014-07-03

2014-07-03 04:43:42 UTC : Little Sitkin Island, Alaska EARTHQUAKE

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Magnitude: 5.2

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-07-03 04:43:42 UTC

2014-07-02 19:43:42 UTC-09:00 at epicenter
 

Earthquake data:

Location : Position of Epicenter 

51.938°N 178.521°E

Depth : Depth of starting Rupture 

122.9km (76.4mi)

Region : Little Sitkin Island, Alaska

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

a) 1km (1mi) SE of Little Sitkin Island, Alaska

b)1351km (839mi) E of Petropavlovsk-Kamchatskiy, Russia

c)1368km (850mi) E of Yelizovo, Russia

d)1368km (850mi) E of Vilyuchinsk, Russia

e) 2961km (1840mi) W of Whitehorse, Canada

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	5.2 mb	± 0.03
Location	51.938°N, 178.521°E	--
Depth	122.9 km	± 7.1 km
Number of Phase Applied1	102
Minimum Distance2	82.6 km (0.74°)
Travel Time Residual3	1.39 sec
Azimuthal Gap4	72°

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)