20150513 17:56:04 (UTC) : SouthSouthWest of Tres Picos, Mexico
earthquake monitor, Mexico earthquake, earthquake realtime
Magnitude : 4.5
Event Time: Time and Date Starting of Earthquake Rupture
 20150513 17:56:04 (UTC)
Earthquake data:
Location : Position of Epicenter
14.690°N 94.164°W
Depth : Depth of starting Rupture
28.6 km
a) 146km (91mi) SSW of Tres Picos, Mexico
b) 150km (93mi) SW of Pijijiapan, Mexico
c) 158km (98mi) WSW of Mapastepec, Mexico
d) 160km (99mi) SSW of Tonala, Mexico
e) 393km (244mi) W of Guatemala City, Guatemala
Location Uncertainty:
Parameter

Value

Uncertainty

Magnitude^{}

4.5 mb

± 0.0

Location^{}

14.690°N 94.164°W

± 4.8 km

Depth

28.6 km

± 6.4

Number of Phase Applied^{1}

163
 
Minimum Distance^{2}

279.86 km (2.51°)
 
Travel Time Residual^{3}

1.32 sec
 
Azimuthal Gap^{4}

189°

^{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)
No comments:
Post a Comment