Thursday, June 13, 2013

Magnitude 2.8 Earthquake of Greenbrier, Arkansas USA 2013 June 13

2013-06-13 06:18:04 UTC : Greenbrier, Arkansas USA EARTHQUAKE

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Magnitude: 2.8

Event Time: Time and Date Starting of Earthquake Rupture 

  1. 2013-06-13 06:18:04 UTC

  1. 2013-06-13 01:18:04 UTC-05:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

35.411°N 92.405°W

Depth : Depth of starting Rupture 

0.1km (0.1mi)

Region : Greenbrier, Arkansas
greenbrier, arkansas usa earthquake 2013 June 13

Directions and Distances :Directions and Distances from Geographical Reference in Close Proximity Which can be effected by Location Uncertainty

a) 18km (11mi) NNW of Greenbrier, Arkansas

b) 34km (21mi) N of Conway, Arkansas

c) 58km (36mi) N of Maumelle, Arkansas

60km (37mi) NW of Cabot, Arkansas

73km (45mi) N of Little Rock, Arkansas

Location Uncertainty: 
2.8 MbLg
± 0.20
35.411°N, 92.405°W
± 0.8 km
0.1 km
± 2.6 km
Number of Phase Applied1

Minimum Distance2
15.0 km (0.13°)

Travel Time Residual3
0.28 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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