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

2014-09-16 20:58:50 UTC : Fajardo, Puerto Rico EARTHQUAKE

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Magnitude : 3.0

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-16 20:58:50 UTC

1. 2014-09-16 16:58:50 UTC-04:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

1. 18.369°N 65.640°W

Depth : Depth of starting Rupture 

108.0km (67.1mi)

Region : Fajardo, Puerto Rico

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

a)  5km (3mi) NNE of Fajardo, Puerto Rico

b)   20km (12mi) E of Rio Grande, Puerto Rico

c)  31km (19mi) NE of Humacao, Puerto Rico

1. 
   

d)  33km (21mi) E of Carolina, Puerto Rico

1. e)  50km (31mi) ESE of San Juan, Puerto Rico

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.0 Md	± 0.00
Location	18.369°N, 65.640°W	± 2.0 km
Depth	108.0 km	± 1.0 km
Number of Phase Applied1	23
Minimum Distance2	25.3 km (0.23°)
Travel Time Residual3	0.23 sec
Azimuthal Gap4	173°

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)