Thursday, July 10, 2014

Magnitude 5.2 Earthquake of Pangai,Tonga 2014-07-10

2014-07-10 07:16:19 UTC : Pangai, Tonga EARTHQUAKE

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Magnitude : 5.2


Event Time: Time and Date Starting of Earthquake Rupture 


  1. 2014-07-10 07:16:19 UTC

  2. 2014-07-09 19:16:19 UTC-12:00 at epicenter


  1. Earthquake data:

Location : Position of Epicenter 

19.973°S 175.552°W


Depth : Depth of starting Rupture 

235.3km (146.2mi)


Region : Pangai, Tonga

Magnitude 5.2 Earthquake of Pangai,Tonga 2014-07-10

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

a)  127km (79mi) W of Pangai, Tonga

b)    133km (83mi) NNW of Nuku`alofa, Tonga

c)  663km (412mi) ESE of Suva, Fiji

d)  664km (413mi) SE of Lambasa, Fiji


e)  778km (483mi) ESE of Nadi, Fiji

Location Uncertainty: 
Parameter
Value
Uncertainty
Magnitude
5.2 mb
± 0.03
Location
19.973°S, 175.552°W
--
Depth
235.3 km
± 6.6 km
Number of Phase Applied1
165

Minimum Distance2
598.8 km (5.38°)

Travel Time Residual3
1.25 sec

Azimuthal Gap4
39°

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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