Magnitude 2.6 Earthquake of Hydesville, California 2014-09-04

2014-09-04 00:34:57 UTC :Hydesville, California EARTHQUAKE

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Magnitude: 2.6

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-04 00:34:57 UTC
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1. 2014-09-03 17:34:57 UTC-07:00 at epicenter

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Earthquake data:

Location : Position of Epicenter 

1. 40.608°N 123.916°W

Depth : Depth of starting Rupture 

19.7km (12.2mi)

Region :Hydesville, California

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

a)  16km (10mi) ENE of Hydesville, California

b)  20km (12mi) E of Fortuna, California

c)  28km (17mi) SSE of Bayside, California

d)  30km (19mi) SE of Eureka, California

e)  306km (190mi) NW of Sacramento, California

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.6 Md	± 0.10
Location	40.608°N, 123.916°W	± 0.5 km
Depth	19.7 km	± 0.5 km
Number of Phase Applied1	21
Minimum Distance2	22.0 km (0.20°)
Travel Time Residual3	0.11 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)