Magnitude 2.5 Earthquake of Lakeview, Oregon 2014-07-18

2014-07-18 21:52:38 UTC : Lakeview, Oregon EARTHQUAKE

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Magnitude: 2.5

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-07-18 21:52:38 UTC

1. 2014-07-18 14:52:38 UTC-07:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

41.944°N 119.659°W

Depth : Depth of starting Rupture 

0.3km (0.2mi)

Region : Lakeview, Oregon

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

a)  62km (39mi) ESE of Lakeview, Oregon

b)  174km (108mi) E of Altamont, Oregon

c)  178km (111mi) E of Klamath Falls, Oregon

d)  189km (117mi) NNE of Susanville, California

e)  308km (191mi) N of Carson City, Nevada

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.5 ml	± 0.18
Location	41.944°N, 119.659°W	± 3.7 km
Depth	0.3 km	± 4.0 km
Number of Phase Applied1	8
Minimum Distance2	53.5 km (0.48°)
Travel Time Residual3	0.1991 sec
Azimuthal Gap4	81°

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)