Magnitude 4.6 Earthquake of Iquique, Chile 2014-08-24

2014-08-24 14:39:59 UTC : Iquique, Chile EARTHQUAKE

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Magnitude: 4.6

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-08-24 14:39:59 UTC

1. 2014-08-24 10:39:59 UTC-04:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

20.834°S 68.988°W

Depth : Depth of starting Rupture 

114.2km (71.0mi)

Region : Iquique, Chile

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

a)  138km (86mi) ESE of Iquique, Chile

b)  180km (112mi) N of Calama, Chile

c)  187km (116mi) NE of Tocopilla, Chile

d)  222km (138mi) WSW of Colchani, Bolivia

e)  487km (303mi) S of La Paz, Bolivia

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.6 mb	± 0.15
Location	20.834°S, 68.988°W	--
Depth	114.2 km	± 5.5 km
Number of Phase Applied1	42
Minimum Distance2	56.9 km (0.51°)
Travel Time Residual3	0.87 sec
Azimuthal Gap4	71°

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)