Saturday, October 25, 2014

Magnitude 2.8 Earthquake of Birch Bay, Washington 2014-10-24

2014-10-24 10:02:49 UTC :Birch Bay, Washington EARTHQUAKE

earthquake monitor,Washington earthquake, earthquake realtime

Magnitude: 2.8

Event Time: Time and Date Starting of Earthquake Rupture 

  1. 2014-10-24 10:02:49 UTC

  1. 2014-10-24 03:02:49 UTC-07:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

48.827°N 122.820°W

Depth : Depth of starting Rupture 

21.0km (13.0mi)

Region : Birch Bay, Washington

Magnitude 2.8 Earthquake of Birch Bay, Washington 2014-10-24

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

a)  11km (7mi) SSW of Birch Bay, Washington

b)  16km (10mi) W of Ferndale, Washington

c)  21km (13mi) S of White Rock, Canada

25km (16mi) WNW of Bellingham, Washington

e)  59km (37mi) NE of Victoria, Canada

Location Uncertainty: 
2.8 Ml
± 0.30
48.827°N, 122.820°W± 0.4 km
21.0 km
± 0.6 km
Number of Phase Applied1

Minimum Distance2
15.0 km (0.13°)

Travel Time Residual3
0.17 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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