Saturday, July 5, 2014

Magnitude 4.9 Earthquake of Little Sitkin Island, Alaska 2014-07-05

2014-07-05 04:13:03 UTC : Little Sitkin Island, Alaska EARTHQUAKE

earthquake monitor,Alaska earthquake, earthquake realtime

Magnitude : 4.9


Event Time: Time and Date Starting of Earthquake Rupture 


  1. 2014-07-05 04:13:03 UTC

  1. 2014-07-04 19:13:03 UTC-09:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

51.758°N 178.679°E


Depth : Depth of starting Rupture 

101.7km (63.2mi)


Region : Little Sitkin Island, Alaska
Magnitude 4.9 Earthquake of Little Sitkin Island, Alaska 2014-07-05


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

a) 24km (15mi) SSE of Little Sitkin Island, Alaska

b1366km (849mi) E of Petropavlovsk-Kamchatskiy, Russia

c) 1383km (859mi) E of Yelizovo, Russia

d) 1383km (859mi) E of Vilyuchinsk, Russia


e2964km (1842mi) W of Whitehorse, Canada

Location Uncertainty: 
Parameter
Value
Uncertainty
Magnitude
4.9 mb
± 0.03
Location
51.758°N, 178.679°E
--
Depth
101.7 km
± 6.3 km
Number of Phase Applied1
159

Minimum Distance2
60.4 km (0.54°)

Travel Time Residual3
0.84 sec

Azimuthal Gap4
117°

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)

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