Magnitude 2.8 Earthquake of Homer, Alaska 2014-09-01

2014-09-01 21:44:29 UTC  : Homer, Alaska EARTHQUAKE

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Magnitude : 2.8

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-01 21:44:29 UTC

1. 2014-09-01 11:44:29 UTC-10:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

1. 58.645°N 150.597°W

Depth : Depth of starting Rupture 

11.7km (7.3mi)

Region : Homer, Alaska

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

 a)  123km (76mi) SSE of Homer, Alaska

 b)    289km (180mi) S of Anchorage, Alaska

 c)  324km (201mi) S of Knik-Fairview, Alaska

1. 
   

 d)  704km (437mi) SSW of Badger, Alaska

1.  e)  903km (561mi) W of Whitehorse, Canada

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.8 ml	--
Location	58.645°N, 150.597°W	± 0.7 km
Depth	11.7 km	± 0.7 km
Number of Phase Applied1	98
Minimum Distance2	--
Travel Time Residual3	0.6 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)