Magnitude 3.0 Earthquake of Brenas, Puerto Rico 2014-09-16

2014-09-16 21:37:56 UTC : Brenas, Puerto Rico EARTHQUAKE

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Magnitude : 3.0

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-16 21:37:56 UTC

1. 2014-09-16 17:37:56 UTC-04:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

1. 19.113°N 66.418°W

Depth : Depth of starting Rupture 

38.0km (23.6mi)

Region :Brenas, Puerto Rico

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

a)  71km (44mi) N of Brenas, Puerto Rico

b)   74km (46mi) N of Vega Baja, Puerto Rico

c)  74km (46mi) N of Barceloneta, Puerto Rico

1. 
   

d)  74km (46mi) NNW of Dorado, Puerto Rico

1. e)  78km (48mi) NNW of San Juan, Puerto Rico

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.0 Md	± 0.00
Location	19.114°N, 66.418°W	± 1.4 km
Depth	38.0 km	± 6.3 km
Number of Phase Applied1	26
Minimum Distance2	71.4 km (0.64°)
Travel Time Residual3	0.28 sec
Azimuthal Gap4	270°

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)