Magnitude 4.6 Earthquake of Pondaguitan, Philippines 2014-10-25

2014-10-25 16:36:10 UTC : Pondaguitan, Philippines EARTHQUAKE

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Magnitude : 4.6

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-10-25 16:36:10 UTC
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1. 2014-10-26 00:36:10 UTC+08:00 at epicenter

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Earthquake data:

Location : Position of Epicenter 

6.243°N 127.393°E

Depth : Depth of starting Rupture 

53.0km (32.9mi)

Region : Pondaguitan, Philippines

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

a)  135km (84mi) E of Pondaguitan, Philippines

b)  143km (89mi) SE of Manay, Philippines

c)  152km (94mi) ESE of Mati, Philippines

d)  169km (105mi) ESE of Lupon, Philippines

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e)  792km (492mi) W of Koror Town, Palau

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.6 mb	± 0.13
Location	6.243°N, 127.393°E	--
Depth	53.0 km	± 10.0 km
Number of Phase Applied1	27
Minimum Distance2	220.4 km (1.98°)
Travel Time Residual3	0.90 sec
Azimuthal Gap4	185°

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)