Magnitude 5.1 Earthquake of Shikotan, Russia 2014-07-25

2014-07-25 23:22:10 UTC :Shikotan, Russia EARTHQUAKE

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Magnitude: 5.1

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-07-25 23:22:10 UTC
2. 
   

1. 2014-07-26 09:22:10 UTC+10:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

43.523°N 147.303°E

Depth : Depth of starting Rupture 

51.7km (32.1mi)

Region : Shikotan, Russia

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

a) 56km (35mi) ESE of Shikotan, Russia

b) 141km (88mi) E of Nemuro, Japan

c) 175km (109mi) E of Shibetsu, Japan

d) 245km (152mi) ENE of Kushiro, Japan

e) 1086km (675mi) NE of Tokyo, Japan

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	5.1 mb	± 0.04
Location	43.523°N, 147.303°E	--
Depth	51.7 km	± 6.9 km
Number of Phase Applied1	89
Minimum Distance2	378.8 km (3.40°)
Travel Time Residual3	0.81 sec
Azimuthal Gap4	126°

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)