Saturday, April 4, 2015

Magnitude 2.9 Earthquake of South of Caldwell, Kansas 2015-04-04

2015-04-04 01:23:28 (UTC) :South of Caldwell, Kansas

earthquake monitor,Japan earthquake, earthquake realtime

Magnitude : 2.9

Event Time: Time and Date Starting of Earthquake Rupture 
  • 2015-04-04 01:23:28 (UTC)
Earthquake data:

Location : Position of Epicenter 

36.906°N 97.626°W

Depth : Depth of starting Rupture 

5.0 km

Region : Caldwell, Kansas
Magnitude 2.9 Earthquake of South of Caldwell, Kansas 2015-04-04
Directions and Distances :Directions and Distances from Geographical Reference in Close Proximity Which can be effected by Location Uncertainty

a) 14km (9mi) S of Caldwell, Kansas

b) 53km (33mi) WNW of Ponca City, Oklahoma

c) 55km (34mi) WSW of Arkansas City, Kansas

d) 60km (37mi) NNE of Enid, Oklahoma

e) 159km (99mi) N of Oklahoma City, Oklahoma

Location Uncertainty: 
2.9 mb_lg
± 0.1
36.906°N 97.626°W
± 1.4 km
5.0 km
± 2.0
Number of Phase Applied1

Minimum Distance2
17.81 km (0.16°)

Travel Time Residual3
0.41 sec

Azimuthal Gap4

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)

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