Wednesday, September 10, 2014

Magnitude 4.7 Earthquake of Lebu, Chile 2014-09-10

2014-09-10 09:06:29 UTC : Lebu, Chile EARTHQUAKE

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Magnitude: 4.7

Event Time: Time and Date Starting of Earthquake Rupture 

  1. 2014-09-10 09:06:29 UTC

  1. 2014-09-10 04:06:29 UTC-05:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

37.870°S 75.243°W

Depth : Depth of starting Rupture 

13.3km (8.3mi)

Region : Lebu, Chile

Magnitude 4.7 Earthquake of Lebu, Chile 2014-09-10

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

a)  143km (89mi) WSW of Lebu, Chile

b)  162km (101mi) W of Canete, Chile

c)  172km (107mi) WSW of Curanilahue, Chile

183km (114mi) WSW of Arauco, Chile

e)  642km (399mi) SW of Santiago, Chile

Location Uncertainty: 
4.7 mb
± 0.08
37.870°S, 75.243°W
13.3 km
± 3.6 km
Number of Phase Applied1

Minimum Distance2
227.2 km (2.04°)

Travel Time Residual3
0.58 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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