Magnitude 5.1 Earthquake of Ichinohe, Japan 2014-09-10

2014-09-10 01:09:37 UTC :Ichinohe, Japan EARTHQUAKE

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Magnitude : 5.1

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-10 01:09:37 UTC
2. 
   

1. 2014-09-10 10:09:37 UTC+09:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

40.121°N 141.869°E

Depth : Depth of starting Rupture 

75.4km (46.9mi)

Region : Ichinohe, Japan

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

a) 49km (30mi) E of Ichinohe, Japan

b) 52km (32mi) SE of Hachinohe, Japan

c) 54km (34mi) N of Miyako, Japan

d) 73km (45mi) N of Yamada, Japan

e) 527km (327mi) NNE of Tokyo, Japan

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	5.1 mb	± 0.04
Location	40.122°N, 141.869°E	--
Depth	75.4 km	± 7.1 km
Number of Phase Applied1	82
Minimum Distance2	236.8 km (2.13°)
Travel Time Residual3	1.01 sec
Azimuthal Gap4	95°

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)