Tuesday, August 27, 2013

Magnitude 4.2 Earthquake of Spanish Springs, Nevada USA 2013 August 27

2013-08-27 00:51:43 UTC : Spanish Springs, Nevada USA EARTHQUAKE

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Magnitude: 4.2


Event Time: Time and Date Starting of Earthquake Rupture 

  1. 2013-08-27 00:51:43 UTC


  1. 2013-08-26 17:51:43 UTC-07:00 at epicenter


Earthquake data:

Location : Position of Epicenter 

39.669°N 119.684°W

Depth : Depth of starting Rupture 

13.9km (8.7mi)

Region : Spanish Springs, Nevada
spanish springs, nevada usa earthquake 2013 august 27

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

a) 3km (2mi) NE of Spanish Springs, Nevada

b) 11km (7mi) NE of Sun Valley, Nevada

c) 16km (10mi) NNE of Sparks, Nevada

d) 
19km (12mi) NE of Reno, Nevada

e) 
56km (35mi) N of Carson City, Nevada

Location Uncertainty: 
Parameter
Value
Uncertainty
Magnitude
4.2 ml
--
Location
39.669°N, 119.684°W
± 0.6 km
Depth
13.9 km
± 0.8 km
Number of Phase Applied1
44

Minimum Distance2
15.3 km (0.14°)

Travel Time Residual3
0.1039 sec

Azimuthal Gap4
74°

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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