Magnitude 5.3 Earthquake of Little Sitkin Island, Alaska 2014-09-10

2014-09-10 18:28:00 UTC  : Little Sitkin Island, Alaska EARTHQUAKE

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Magnitude : 5.3

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-10 18:28:00 UTC

1. 2014-09-10 09:28:00 UTC-09:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

1. 52.111°N 178.297°E

Depth : Depth of starting Rupture 

121.3km (75.3mi)

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)   23km (14mi) NW of Little Sitkin Island, Alaska

 b)    1331km (827mi) E of Petropavlovsk-Kamchatskiy, Russia

 c)   1348km (838mi) E of Yelizovo, Russia

 d)   1349km (838mi) E of Vilyuchinsk, Russia

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

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	5.3 mb	± 0.03
Location	52.111°N, 178.297°E	± 1.3 km
Depth	121.3 km	± 4.9 km
Number of Phase Applied1	232
Minimum Distance2	107.3 km (0.96°)
Travel Time Residual3	0.79 sec
Azimuthal Gap4	41°

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)