Magnitude 5.4 Earthquake of Licuan, Philippines 2013 May 30

2013-05-30 02:24:16 UTC : Licuan, Philippines EARTHQUAKE

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Magnitude: 5.4

Event Time: Time and Date Starting of Earthquake Rupture 

2013-05-30 02:24:16 UTC

2013-05-30 10:24:16 UTC+08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

17.758°N 120.903°E

Depth : Depth of starting Rupture 

12.8km (7.9mi)

Region : Licuan, Philippines

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

a) 16km (10mi) N of Licuan, Philippines

b) 35km (22mi) ENE of Bangued, Philippines

c) 48km (30mi) SE of Batac City, Philippines

d) 48km (30mi) NNW of Pasil, Philippines

e) 349km (217mi) N of Manila, Philippines

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	5.4 mb	± 0.04
Location	17.758°N, 120.903°E	± 15.4 km
Depth	12.8 km	± 2.5 km
Number of Phase Applied1	91
Minimum Distance2	52.3 km (0.47°)
Travel Time Residual3	1.24 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)