Magnitude 2.5 Earthquake of Trinidad, Colorado 2014-10-20

2014-10-20 04:01:43 UTC : Trinidad, Colorado EARTHQUAKE

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Magnitude: 2.5

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-10-20 04:01:43 UTC

1. 2014-10-19 22:01:43 UTC-06:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

37.202°N 104.809°W

Depth : Depth of starting Rupture 

5.0km (3.1mi)

Region : Trinidad, Colorado

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

a)  27km (17mi) W of Trinidad, Colorado

b)  118km (73mi) S of Pueblo, Colorado

c)  127km (79mi) S of Pueblo West, Colorado

d)  142km (88mi) SSE of Canon City, Colorado

e)  196km (122mi) NNE of Santa Fe, New Mexico

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.5 ml	± 0.09
Location	37.202°N, 104.809°W	--
Depth	5.0 km	± 2.0 km
Number of Phase Applied1	14
Minimum Distance2	36.1 km (0.32°)
Travel Time Residual3	1.45 sec
Azimuthal Gap4	105°

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)