Magnitude 4.5 Earthquake of Sarangani, Philippines 2013 September 19

2013-09-19 11:04:36 UTC : Sarangani, Philippines EARTHQUAKE

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Magnitude: 4.5

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2013-09-19 11:04:36 UTC

1. 2013-09-19 19:04:36 UTC+08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

5.069°N 124.734°E

Depth : Depth of starting Rupture 

370.6km (230.3mi)

Region : Sarangani, Philippines

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

a) 88km (55mi) WSW of Sarangani, Philippines

b) 98km (61mi) SSW of Glan, Philippines

c) 102km (63mi) S of Kiamba, Philippines

d) 117km (73mi) SSW of Malapatan, Philippines

e) 1085km (674mi) E of Bandar Seri Begawan, Brunei

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.5 mb	± 0.07
Location	5.069°N, 124.734°E	--
Depth	370.6 km	± 6.0 km
Number of Phase Applied1	65
Minimum Distance2	240.2 km (2.16°)
Travel Time Residual3	0.57 sec
Azimuthal Gap4	101°

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)