Magnitude 4.7 Earthquake of Kamiiso, Japan 2013 November 12

2013-11-12 11:36:03 UTC: Kamiiso, Japan EARTHQUAKE

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Magnitude: 4.7

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2013-11-12 11:36:03 UTC

1. 2013-11-12 20:36:03 UTC+09:00 at epicenter
2. 
   

Earthquake data:

Location : Position of Epicenter 

41.708°N 139.405°E

Depth : Depth of starting Rupture 

186.3km (115.8mi)

Region : Kamiiso, Japan

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

a) 104km (65mi) W of Kamiiso, Japan

b) 108km (67mi) W of Nanae, Japan

c) 111km (69mi) W of Hakodate, Japan

d) 129km (80mi) NW of Kizukuri, Japan

e) 668km (415mi) N of Tokyo, Japan

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.7 mb	± 0.03
Location	41.708°N, 139.405°E	--
Depth	186.3 km	± 6.9 km
Number of Phase Applied1	133
Minimum Distance2	313.8 km (2.82°)
Travel Time Residual3	0.86 sec
Azimuthal Gap4	93°

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)