Saturday, September 13, 2014

Magnitude 4.3 Earthquake of Chichi-shima, Japan 2014-09-13

2014-09-13 10:11:50 UTC :Chichi-shima, Japan EARTHQUAKE

earthquake monitor,Japan earthquake, earthquake realtime

Magnitude : 4.3

Event Time: Time and Date Starting of Earthquake Rupture 

  1. 2014-09-13 10:11:50 UTC

  1. 2014-09-13 19:11:50 UTC+09:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

27.592°N 139.997°E

Depth : Depth of starting Rupture 

492.4km (306.0mi)

Region : Chichi-shima, Japan

Magnitude 4.3 Earthquake of Chichi-shima, Japan 2014-09-13

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

a) 226km (140mi) WNW of Chichi-shima, Japan

b) 781km (485mi) SSE of Shingu, Japan

c) 790km (491mi) S of Shimoda, Japan

d) 795km (494mi) SSE of Oyama, Japan

e) 898km (558mi) S of Tokyo, Japan

Location Uncertainty: 
4.3 mb
± 0.07
27.592°N, 139.997°E
492.5 km
± 8.1 km
Number of Phase Applied1

Minimum Distance2
223.4 km (2.01°)

Travel Time Residual3
0.87 sec

Azimuthal Gap4

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)

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