Magnitude 2.8 Earthquake of Cobb, California 2014-09-14

2014-09-14 18:07:34 UTC :Cobb, California EARTHQUAKE

earthquake monitor,California earthquake, earthquake realtime

Magnitude: 2.8

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-14 18:07:34 UTC
2. 
   

1. 2014-09-14 11:07:34 UTC-07:00 at epicenter

1. 
   

Earthquake data:

Location : Position of Epicenter 

1. 38.827°N 122.795°W

Depth : Depth of starting Rupture 

2.6km (1.6mi)

Region : Cobb, California

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

a)  6km (4mi) W of Cobb, California

b)  20km (12mi) SW of Clearlake, California

c)  24km (15mi) NNE of Healdsburg, California

d)  31km (19mi) N of Windsor, California

e)  116km (72mi) WNW of Sacramento, California

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.8 Md	± 0.20
Location	38.827°N, 122.795°W	± 0.1 km
Depth	2.6 km	± 0.2 km
Number of Phase Applied1	56
Minimum Distance2	1.0 km (0.01°)
Travel Time Residual3	0.05 sec
Azimuthal Gap4	43°

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)