Sunday, July 21, 2013

Magnitude 6.5 Earthquake of Blenheim, New Zealand 2013 July 21

2013-07-21 05:09:31 UTC : Blenheim, New Zealand EARTHQUAKE

earthquake monitor,New Zealand earthquake, earthquake realtime

Magnitude: 6.5

Event Time: Time and Date Starting of Earthquake Rupture 

  1. 2013-07-21 05:09:31 UTC

  1. 2013-07-21 17:09:31 UTC+12:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

41.713°S 174.443°E

Depth : Depth of starting Rupture 

14.0km (8.7mi)

Region : Blenheim, New Zealand
blenheim, new zealand earthquake 2013 July 21

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

a) 46km (29mi) ESE of Blenheim, New Zealand

b) 53km (33mi) SSW of Karori, New Zealand

c) 54km (34mi) SSW of Wellington, New Zealand

67km (42mi) SW of Lower Hutt, New Zealand

67km (42mi) SW of Lower Hutt, New Zealand

Location Uncertainty: 
6.5 Mww
41.713°S, 174.443°E
± 12.9 km
14.0 km
± 2.6 km
Number of Phase Applied1

Minimum Distance2
50.1 km (0.45°)

Travel Time Residual3
0.89 sec

Azimuthal Gap4

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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