Magnitude 5.4 Earthquake of Sechura, Peru 2014-08-04

2014-08-04 03:20:09 UTC : Sechura, Peru EARTHQUAKE

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Magnitude: 5.4

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-08-04 03:20:09 UTC

1. 2014-08-03 22:20:09 UTC-05:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

6.910°S 81.549°W

Depth : Depth of starting Rupture 

19.4km (12.1mi)

Region :  Sechura, Peru

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

a)  169km (105mi) SSW of Sechura, Peru

b)  178km (111mi) W of Pimentel, Peru

c)   183km (114mi) W of Lambayeque, Peru

d)  185km (115mi) W of Monsefu, Peru

e)  754km (469mi) NW of Lima, Peru

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	5.4 mb	± 0.03
Location	6.910°S, 81.550°W	--
Depth	19.4 km	± 4.2 km
Number of Phase Applied1	94
Minimum Distance2	763.2 km (6.86°)
Travel Time Residual3	0.85 sec
Azimuthal Gap4	76°

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)