Wednesday, September 17, 2014

Magnitude 2.7 Earthquake of Cobb, California 2014-09-16

2014-09-16 20:23:31 UTC :Cobb, California EARTHQUAKE

earthquake monitor,California earthquake, earthquake realtime

Magnitude: 2.7

Event Time: Time and Date Starting of Earthquake Rupture 

  1. 2014-09-16 20:23:31 UTC

  1. 2014-09-16 13:23:31 UTC-07:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

  1. 38.790°N 122.724°W

Depth : Depth of starting Rupture 

2.2km (1.4mi)

Region : Cobb, California

Magnitude 2.7 Earthquake of Cobb, California 2014-09-16

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

a)  3km (2mi) S of Cobb, California

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

c)  23km (14mi) NNE of Healdsburg, California

28km (17mi) NNE of Windsor, California

e)  109km (68mi) WNW of Sacramento, California

Location Uncertainty: 
2.7 ml
± 0.20
38.790°N, 122.724°W
± 0.1 km
2.2 km
± 0.2 km
Number of Phase Applied1

Minimum Distance2
1.0 km (0.01°)

Travel Time Residual3
0.07 sec

Azimuthal Gap4

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)

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