20150412 12:10:35 (UTC) :SouthWest of Medford, Oklahoma
earthquake monitor,Oklahoma earthquake, earthquake realtime
Magnitude : 3.1
Event Time: Time and Date Starting of Earthquake Rupture
 20150412 12:10:35 (UTC)
Earthquake data:
Location : Position of Epicenter
36.701°N 97.915°W
Depth : Depth of starting Rupture
2.8 km
a) 20km (12mi) SW of Medford, Oklahoma
b) 34km (21mi) N of Enid, Oklahoma
c) 74km (46mi) W of Ponca City, Oklahoma
d) 87km (54mi) WSW of Arkansas City, Kansas
e) 141km (88mi) NNW of Oklahoma City, Oklahoma
Location Uncertainty:
Parameter

Value

Uncertainty

Magnitude^{}

3.1 mb_lg

± 0.1

Location^{}

36.701°N 97.915°W

± 1.6 km

Depth

2.8 km

± 7.6

Number of Phase Applied^{1}

75
 
Minimum Distance^{2}

17.37 km (0.16°)
 
Travel Time Residual^{3}

0.30 sec
 
Azimuthal Gap^{4}

43°

^{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