Saturday, July 26, 2014

Magnitude 4.6 Earthquake of Sabtang, Philippines 2014-07-26

2014-07-26 08:40:05 UTC : Sabtang, Philippines EARTHQUAKE

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Magnitude: 4.6


Event Time: Time and Date Starting of Earthquake Rupture 


  1. 2014-07-26 08:40:05 UTC

  1. 2014-07-26 16:40:05 UTC+08:00 at epicenter



Earthquake data:

Location : Position of Epicenter 

20.297°N 120.267°E

Depth : Depth of starting Rupture 

18.6km (11.6mi)


Region : Sabtang, Philippines


Magnitude 4.6 Earthquake of Sabtang, Philippines 2014-07-26




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

a) 167km (104mi) W of Sabtang, Philippines

b) 195km (121mi) SSW of Hengchun, Taiwan

c) 205km (127mi) NNW of Claveria, Philippines

d) 
234km (145mi) N of Laoag, Philippines


e) 634km (394mi) N of Manila, Philippines

Location Uncertainty: 
Parameter
Value
Uncertainty
Magnitude
4.6 mb
± 0.09
Location
20.297°N, 120.267°E
--
Depth
18.7 km
± 5.2 km
Number of Phase Applied1
58

Minimum Distance2
291.5 km (2.62°)

Travel Time Residual3
0.84 sec

Azimuthal Gap4
126°

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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