Magnitude 3.1 Earthquake of Conway Springs, Kansas 2014-09-08

2014-09-08 15:23:30 UTC : Conway Springs, Kansas EARTHQUAKE

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Magnitude: 3.1

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-08 15:23:30 UTC
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1. 2014-09-08 10:23:30 UTC-05:00 at epicenter

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Earthquake data:

Location : Position of Epicenter 

37.271°N 97.624°W

Depth : Depth of starting Rupture 

6.5km (4.1mi)

Region : Conway Springs, Kansas

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

a)  13km (8mi) S of Conway Springs, Kansas

b)  40km (25mi) SW of Haysville, Kansas

c)  43km (27mi) SW of Derby, Kansas

d)  53km (33mi) SSW of Wichita, Kansas

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e)  200km (124mi) N of Oklahoma City, Oklahoma

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.1 mb_lg	± 0.05
Location	37.271°N, 97.624°W	--
Depth	6.6 km	± 7.3 km
Number of Phase Applied1	29
Minimum Distance2	24.0 km (0.22°)
Travel Time Residual3	0.43 sec
Azimuthal Gap4	88°

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)