Magnitude 5.2 Earthquake of Hirara, Japan 2014-09-05

2014-09-05 07:21:51 UTC :Hirara, Japan EARTHQUAKE

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Magnitude : 5.2

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-05 07:21:51 UTC
2. 
   

1. 2014-09-05 15:21:51 UTC+08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

25.850°N 125.241°E

Depth : Depth of starting Rupture 

75.7km (47.0mi)

Region : Hirara, Japan

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

a) 116km (72mi) N of Hirara, Japan

b) 199km (124mi) NNE of Ishigaki, Japan

c) 245km (152mi) W of Itoman, Japan

d) 246km (153mi) W of Tomigusuku, Japan

e) 1193km (741mi) ENE of Hong Kong, Hong Kong

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	5.2 mb	± 0.06
Location	25.850°N, 125.241°E	--
Depth	75.7 km	± 7.6 km
Number of Phase Applied1	84
Minimum Distance2	389.2 km (3.50°)
Travel Time Residual3	1.30 sec
Azimuthal Gap4	79°

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)