Magnitude 3.5 Earthquake of Tanglewilde-Thompson Place, Washington 2014-10-12

2014-10-12 06:24:59 UTC :Tanglewilde-Thompson Place, Washington EARTHQUAKE

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Magnitude: 3.5

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-10-12 06:24:59 UTC
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1. 2014-10-11 23:24:59 UTC-07:00 at epicenter
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Earthquake data:

Location : Position of Epicenter 

47.107°N 122.738°W

Depth : Depth of starting Rupture 

57.0km (35.4mi)

Region : Tanglewilde-Thompson Place, Washington

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

a)  6km (4mi) NNE of Tanglewilde-Thompson Place, Washington

b)  10km (6mi) NE of Lacey, Washington

c)  12km (7mi) W of Fort Lewis, Washington

d)  14km (9mi) ENE of Olympia, Washington

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e)  17km (11mi) NE of Tumwater, Washington

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.5 Ml	± 0.20
Location	47.107°N, 122.738°W	± 0.4 km
Depth	57.0 km	± 0.8 km
Number of Phase Applied1	52
Minimum Distance2	19.0 km (0.17°)
Travel Time Residual3	0.16 sec
Azimuthal Gap4	36°

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)