Magnitude 2.9 Earthquake of Pole Ojea, Puerto Rico 2014-09-11

2014-09-11 01:59:08 UTC  :Pole Ojea, Puerto Rico EARTHQUAKE

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Magnitude : 2.9

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-11 01:59:08 UTC

1. 2014-09-10 21:59:08 UTC-04:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

1. 17.927°N 67.119°W

Depth : Depth of starting Rupture 

10.0km (6.2mi)

Region : Pole Ojea, Puerto Rico

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

a)  8km (5mi) SE of Pole Ojea, Puerto Rico

b)    17km (11mi) S of Cabo Rojo, Puerto Rico

c)  18km (11mi) SSW of San German, Puerto Rico

1. 
   

d)  23km (14mi) S of Hormigueros, Puerto Rico

1. e)  122km (76mi) WSW of San Juan, Puerto Rico

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.9 Md	± 0.00
Location	17.927°N, 67.119°W	± 1.0 km
Depth	10.0 km	± 0.5 km
Number of Phase Applied1	27
Minimum Distance2	8.8 km (0.08°)
Travel Time Residual3	0.17 sec
Azimuthal Gap4	263°

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)