Magnitude 2.8 Earthquake of Coalinga, California 2014-07-15

2014-07-15 09:42:56 UTC : Coalinga, California EARTHQUAKE

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Magnitude: 2.8

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-07-15 09:42:56 UTC

1. 2014-07-15 02:42:56 UTC-07:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

36.269°N 120.358°W

Depth : Depth of starting Rupture 

8.0km (5.0mi)

Region : Coalinga, California

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

a)  14km (9mi) N of Coalinga, California

b) 35km (22mi) NW of Avenal, California

c)  51km (32mi) W of Lemoore, California

d)  53km (33mi) S of Mendota, California

e)  275km (171mi) SSE of Sacramento, California

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.8 Md	± 0.10
Location	36.269°N, 120.358°W	± 0.2 km
Depth	8.0 km	± 0.2 km
Number of Phase Applied1	43
Minimum Distance2	3.0 km (0.03°)
Travel Time Residual3	0.09 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)