Magnitude 5.7 Earthquake of Iquique, Chile 2014-08-23

2014-08-23 04:45:33 UTC : Iquique, Chile EARTHQUAKE

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Magnitude: 5.7

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-08-23 04:45:33 UTC

1. 2014-08-23 00:45:33 UTC-04:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

20.167°S 69.111°W

Depth : Depth of starting Rupture 

97.8km (60.8mi)

Region : Iquique, Chile

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

a)  108km (67mi) E of Iquique, Chile

b) 225km (140mi) SSE of Arica, Chile

c)  227km (141mi) W of Colchani, Bolivia

d)  240km (149mi) W of Uyuni, Bolivia

e)  418km (260mi) SSW of La Paz, Bolivia

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	5.7 mb	± 0.03
Location	20.167°S, 69.111°W	--
Depth	97.8 km	± 4.8 km
Number of Phase Applied1	67
Minimum Distance2	5.2 km (0.05°)
Travel Time Residual3	1.05 sec
Azimuthal Gap4	53°

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)