20150419 17:20:12 (UTC) :NorthEast of Greenfield, California
earthquake monitor, California earthquake, earthquake realtime
Magnitude : 2.9
Event Time: Time and Date Starting of Earthquake Rupture
 20150419 17:20:12 (UTC)
Earthquake data:
Location : Position of Epicenter
36.468°N 121.038°W
Depth : Depth of starting Rupture
2.8 km
a) 24km (15mi) NE of Greenfield, California
b) 26km (16mi) E of Soledad, California
c) 29km (18mi) NNE of King City, California
d) 53km (33mi) SE of Hollister, California
e) 238km (148mi) S of Sacramento, California
Location Uncertainty:
Parameter

Value

Uncertainty

Magnitude^{}

2.9 md

± 0.1

Location^{}

36.468°N 121.038°W

± 0.1 km

Depth

2.8 km

± 0.5

Number of Phase Applied^{1}

62
 
Minimum Distance^{2}

5.08 km (0.05°)
 
Travel Time Residual^{3}

0.09 sec
 
Azimuthal Gap^{4}

58°

^{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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