Magnitude 4.6 Earthquake of Chichi-shima, Japan 2014-10-28

2014-10-28 22:50:34 UTC :Chichi-shima, Japan EARTHQUAKE

earthquake monitor,Japan earthquake, earthquake realtime

Magnitude : 4.6

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-10-28 22:50:34 UTC
2. 2014-10-29 07:50:34 UTC+09:00 at epicenter

1. 
   

Earthquake data:

Location : Position of Epicenter 

27.186°N 140.280°E

Depth : Depth of starting Rupture 

471.9km (293.3mi)

Region : Chichi-shima, Japan

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

a) 192km (119mi) W of Chichi-shima, Japan

b) 834km (518mi) SSE of Shingu, Japan

c) 839km (521mi) S of Shimoda, Japan

d) 845km (525mi) SSE of Oyama, Japan

e) 944km (587mi) S of Tokyo, Japan

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.6 mb	± 0.04
Location	27.186°N, 140.280°E	--
Depth	472.0 km	± 7.6 km
Number of Phase Applied1	116
Minimum Distance2	189.1 km (1.70°)
Travel Time Residual3	0.64 sec
Azimuthal Gap4	57°

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)