Magnitude 4.8 Earthquake of Nago, Japan 2014-08-02

2014-08-02 14:18:31 UTC : Nago, Japan EARTHQUAKE

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Magnitude: 4.8

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-08-02 14:18:31 UTC
2. 
   

1. 2014-08-02 23:18:31 UTC+09:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

27.847°N 128.172°E

Depth : Depth of starting Rupture 

55.8km (34.7mi)

Region : Nago, Japan

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

a) 140km (87mi) N of Nago, Japan

b) 141km (88mi) WSW of Naze, Japan

c) 161km (100mi) NNE of Ishikawa, Japan

d) 168km (104mi) N of Gushikawa, Japan

e) 1083km (673mi) S of Seoul, South Korea

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.8 mb	± 0.14
Location	27.847°N, 128.172°E	--
Depth	55.8 km	± 10.0 km
Number of Phase Applied1	26
Minimum Distance2	112.5 km (1.01°)
Travel Time Residual3	1.19 sec
Azimuthal Gap4	129°

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)