Magnitude 4.8 Earthquake of Yonakuni, Japan 2014-09-06

2014-09-06 23:33:08 UTC :Yonakuni, Japan EARTHQUAKE

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Magnitude : 4.8

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-06 23:33:08 UTC
2. 
   

1. 2014-09-07 07:33:08 UTC+08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

24.003°N 122.927°E

Depth : Depth of starting Rupture 

23.8km (14.8mi)

Region : Yonakuni, Japan

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

a) 51km (32mi) S of Yonakuni, Japan

b) 127km (79mi) ESE of Su'ao, Taiwan

c) 130km (81mi) WSW of Ishigaki, Japan

d) 134km (83mi) E of Hualian, Taiwan

e) 917km (570mi) ENE of Hong Kong, Hong Kong

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.8 mb	± 0.05
Location	24.003°N, 122.927°E	--
Depth	23.8 km	± 5.0 km
Number of Phase Applied1	183
Minimum Distance2	136.8 km (1.23°)
Travel Time Residual3	0.86 sec
Azimuthal Gap4	34°

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)