Magnitude 7.9 Earthquake of Lamjung, Nepal 2015-04-25

2015-04-25 06:11:25 (UTC) :East of Lamjung, Nepal

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Magnitude : 7.5

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-04-25 06:11:25 (UTC)

Earthquake data:

Location : Position of Epicenter 

28.165°N 84.725°E

Depth : Depth of starting Rupture 

11.9 km

Region : Lamjung, Nepal

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

a) 35km (22mi) E of Lamjung, Nepal

b) 60km (37mi) NNE of Bharatpur, Nepal

c) 75km (47mi) E of Pokhara, Nepal

d) 76km (47mi) NW of Kirtipur, Nepal

e) 77km (48mi) NW of Kathmandu, Nepal

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	7.5 mwb	± 0.1
Location	28.165°N 84.725°E	± 8.5 km
Depth	11.9 km	± 4.0
Number of Phase Applied1	117
Minimum Distance2	1252.67 km (11.25°)
Travel Time Residual3	1.08 sec
Azimuthal Gap4	35°

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)