Tuesday, September 23, 2014

Magnitude 5.4 Earthquake of Palmerston North, New Zealand 2014-09-22

2014-09-22 14:41:22 UTC : Palmerston North, New Zealand EARTHQUAKE

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Magnitude: 5.4


Event Time: Time and Date Starting of Earthquake Rupture 


  1. 2014-09-22 14:41:22 UTC

  1. 2014-09-23 02:41:22 UTC+12:00 at epicenter


Earthquake data:

Location : Position of Epicenter 

40.546°S 175.970°E

Depth : Depth of starting Rupture 

35.4km (22.0mi)


Region : Palmerston North, New Zealand


Magnitude 5.4 Earthquake of Palmerston North, New Zealand 2014-09-22




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

a)  37km (23mi) SE of Palmerston North, New Zealand

b)  52km (32mi) NNE of Masterton, New Zealand

c)  59km (37mi) E of Levin, New Zealand

d)  
90km (56mi) ENE of Paraparaumu, New Zealand


e)  129km (80mi) NE of Wellington, New Zealand

Location Uncertainty: 
Parameter
Value
Uncertainty
Magnitude
5.4 mb
± 0.08
Location
40.546°S, 175.970°E
--
Depth
35.4 km
± 4.7 km
Number of Phase Applied1
131

Minimum Distance2
27.6 km (0.25°)

Travel Time Residual3
0.76 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)

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