Magnitude 2.5 Earthquake of Tulelake, California 2014-07-15

2014-07-15 21:44:01 UTC : Tulelake, California EARTHQUAKE

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Magnitude: 2.5

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-07-15 21:44:01 UTC

1. 2014-07-15 14:44:01 UTC-07:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

42.212°N 121.351°W

Depth : Depth of starting Rupture 

0.0km (0.0mi)

Region : Tulelake, California

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

a)  30km (19mi) NNE of Tulelake, California

b) 31km (19mi) E of Altamont, Oregon

c)  35km (22mi) E of Klamath Falls, Oregon

d)  112km (70mi) E of Ashland, Oregon

e)  332km (206mi) SSE of Salem, Oregon

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.5 Md	± 0.30
Location	42.212°N, 121.351°W	± 1.3 km
Depth	0.0 km	± 31.6 km
Number of Phase Applied1	9
Minimum Distance2	30.0 km (0.27°)
Travel Time Residual3	0.27 sec
Azimuthal Gap4	112°

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)