Magnitude 2.6 Earthquake of Livermore, California 2014-09-19

2014-09-19 10:37:17 UTC :Livermore, California EARTHQUAKE

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Magnitude : 2.6

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-19 10:37:17 UTC
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1. 2014-09-19 03:37:17 UTC-07:00 at epicenter

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Earthquake data:

Location : Position of Epicenter 

1. 37.682°N 121.730°W

Depth : Depth of starting Rupture 

3.1km (1.9mi)

Region :Livermore, California

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

a)  3km (2mi) E of Livermore, California

b)  12km (7mi) E of Pleasanton, California

c)  18km (11mi) E of Dublin, California

d)  24km (15mi) ESE of San Ramon, California

e)  101km (63mi) SSW of Sacramento, California

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.6 md	± 0.12
Location	37.682°N, 121.730°W	± 0.3 km
Depth	3.1 km	± 0.5 km
Number of Phase Applied1	29
Minimum Distance2	7.1 km (0.06°)
Travel Time Residual3	0.14 sec
Azimuthal Gap4	107°

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)