Magnitude 5.7 Earthquake of Iquique, Chile 2014-08-14

2014-08-14 00:02:55 UTC : Iquique, Chile EARTHQUAKE

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Magnitude: 5.7

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-08-14 00:02:55 UTC

1. 2014-08-13 20:02:55 UTC-04:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

20.160°S 69.989°W

Depth : Depth of starting Rupture 

48.5km (30.1mi)

Region : Iquique, Chile

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

a)  17km (11mi) ENE of Iquique, Chile

b)  189km (117mi) S of Arica, Chile

c)  214km (133mi) N of Tocopilla, Chile

d)  240km (149mi) S of Tacna, Peru

e)  449km (279mi) SSW of La Paz, Bolivia

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	5.7 mb	± 0.03
Location	20.160°S, 69.989°W	--
Depth	48.5 km	± 5.5 km
Number of Phase Applied1	90
Minimum Distance2	49.1 km (0.44°)
Travel Time Residual3	1.36 sec
Azimuthal Gap4	111°

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)