Magnitude 4.1 Earthquake of Farkhor, Tajikistan 2015-05-28

2015-05-28 15:04:59 (UTC) : North of Farkhor, Tajikistan

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Magnitude : 4.1

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-05-28 15:04:59 (UTC)

Earthquake data:

Location : Position of Epicenter 

37.656°N 69.368°E

Depth : Depth of starting Rupture 

22.1 km

Region : Farkhor, Tajikistan

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

a) 18km (11mi) N of Farkhor, Tajikistan

b) 29km (18mi) SW of Vose', Tajikistan

c) 30km (19mi) W of Chubek, Tajikistan

d) 46km (29mi) SW of Kulob, Tajikistan

e) 110km (68mi) SSE of Dushanbe, Tajikistan

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.1 mb	± 0.3
Location	37.656°N 69.368°E	± 4.0 km
Depth	22.1 km	± 8.9
Number of Phase Applied1	29
Minimum Distance2	62.67 km (0.56°)
Travel Time Residual3	0.96 sec
Azimuthal Gap4	80°

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)