Thursday, October 2, 2014

Magnitude 4.4 Earthquake of San Pedro de Atacama, Chile 2014-10-01

2014-10-01 17:26:58 UTC :San Pedro de Atacama, Chile EARTHQUAKE

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Magnitude: 4.4

Event Time: Time and Date Starting of Earthquake Rupture 

  1. 2014-10-01 17:26:58 UTC

  1. 2014-10-01 13:26:58 UTC-04:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

22.461°S 67.439°W

Depth : Depth of starting Rupture 

162.5km (101.0mi)

Region : San Pedro de Atacama, Chile

Magnitude 4.4 Earthquake of San Pedro de Atacama, Chile 2014-10-01

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

a)  94km (58mi) ENE of San Pedro de Atacama, Chile

b)  153km (95mi) E of Calama, Chile

c)  194km (121mi) WSW of Villazon, Bolivia

194km (121mi) WSW of La Quiaca, Argentina

e)  664km (413mi) S of La Paz, Bolivia

Location Uncertainty: 
4.4 mb
± 0.14
22.461°S, 67.439°W
162.5 km
± 7.6 km
Number of Phase Applied1

Minimum Distance2
152.4 km (1.37°)

Travel Time Residual3
1.08 sec

Azimuthal Gap4

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)

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