20150423 14:31:40 (UTC) :NorthNorthEast of Makubetsu, Japan
earthquake monitor, Japan earthquake, earthquake realtime
Magnitude : 5.0
Event Time: Time and Date Starting of Earthquake Rupture
 20150423 14:31:40 (UTC)
Earthquake data:
Location : Position of Epicenter
45.737°N 142.102°E
Depth : Depth of starting Rupture
304.0 km
a) 46km (29mi) NNE of Makubetsu, Japan
b) 49km (30mi) NE of Wakkanai, Japan
c) 105km (65mi) S of Nevel'sk, Russia
d) 112km (70mi) SSW of Korsakov, Russia
e) 1134km (705mi) N of Tokyo, Japan
Location Uncertainty:
Parameter

Value

Uncertainty

Magnitude^{}

5.0 mb

± 0.0

Location^{}

45.737°N 142.102°E

± 7.4 km

Depth

304.0 km

± 5.3

Number of Phase Applied^{1}

96
 
Minimum Distance^{2}

145.16 km (1.30°)
 
Travel Time Residual^{3}

0.98 sec
 
Azimuthal Gap^{4}

104°

^{1}Number 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.
^{2}Minimum Distance:
Horizontal distance of nearest Station measured in Km from epicenter. The smaller the more accuracy in prediction of depth of EQ.
^{3}Travel 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.
^{4}Azimuthal 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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