Magnitude 4.9 Earthquake of Kepulauan Barat Daya, Indonesia 2014-08-06

2014-08-06 15:16:19 UTC : Kepulauan Barat Daya, Indonesia EARTHQUAKE

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Magnitude: 4.9

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-08-06 15:16:19 UTC
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1. 2014-08-07 00:16:19 UTC+09:00 at epicenter

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Earthquake data:

Location : Position of Epicenter 

7.231°S 128.028°E

Depth : Depth of starting Rupture 

39.9km (24.8mi)

Region :  Kepulauan Barat Daya, Indonesia

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

a)  307km (191mi) ENE of Dili, East Timor

b)  391km (243mi) S of Ambon, Indonesia

c)  402km (250mi) ENE of Atambua, Indonesia

d)  442km (275mi) SSW of Amahai, Indonesia

e)  307km (191mi) ENE of Dili, East Timor

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.9 mb	± 0.09
Location	7.231°S, 128.028°E	--
Depth	39.9 km	± 5.7 km
Number of Phase Applied1	81
Minimum Distance2	370.4 km (3.33°)
Travel Time Residual3	0.74 sec
Azimuthal Gap4	25°

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)