Magnitude 4.6 Earthquake of San Antonio de los Cobres, Argentina 2015-05-29

2015-05-29 02:52:53 (UTC) : West of San Antonio de los Cobres, Argentina

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Magnitude : 4.6

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-05-29 02:52:53 (UTC)

Earthquake data:

Location : Position of Epicenter 

24.201°S 67.029°W

Depth : Depth of starting Rupture 

165.3 km

Region : San Antonio de los Cobres, Argentina

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

a) 72km (45mi) W of San Antonio de los Cobres, Argentina

b) 176km (109mi) WNW of Salta, Argentina

c) 176km (109mi) W of San Salvador de Jujuy, Argentina

d) 184km (114mi) W of Palpala, Argentina

e) 860km (534mi) S of La Paz, Bolivia

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.6 mb	± 0.0
Location	24.201°S 67.029°W	± 7.8 km
Depth	165.3 km	± 7.0
Number of Phase Applied1	74
Minimum Distance2	260.71 km (2.34°)
Travel Time Residual3	1.33 sec
Azimuthal Gap4	55°

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)