Sunday, October 26, 2014

Magnitude 3.0 Earthquake of Hidden Valley Lake, California USA 2014-10-26

2014-10-26 10:58:30 UTC : Hidden Valley Lake, California USA EARTHQUAKE

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Magnitude: 3.0


Event Time: Time and Date Starting of Earthquake Rupture 

  1. 2014-10-26 10:58:30 UTC

  1. 2014-10-26 03:58:30 UTC-07:00 at epicenter


                  Earthquake data:

                  Location : Position of Epicenter 

                  38.849°N 122.472°W

                  Depth : Depth of starting Rupture 

                  9.9km (6.2mi)


                  Region : Hidden Valley Lake, California
                  Magnitude 3.0 Earthquake of Hidden Valley Lake, California USA 2014-10-26


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

                  a) 8km (5mi) ENE of Hidden Valley Lake, California

                  b) 18km (11mi) SE of Clearlake, California

                  c) 43km (27mi) NE of Healdsburg, California

                  d) 
                  44km (27mi) NE of Windsor, California


                  e) 90km (56mi) WNW of Sacramento, California

                  Location Uncertainty: 
                  Parameter
                  Value
                  Uncertainty
                  Magnitude
                  3.1 ml
                  ± 0.41
                  Location
                  38.849°N, 122.472°W
                  ± 0.3 km
                  Depth
                  10.0 km
                  ± 0.4 km
                  Number of Phase Applied1
                  40

                  Minimum Distance2
                  5.2 km (0.05°)

                  Travel Time Residual3
                  0.15 sec

                  Azimuthal Gap4
                  84°

                  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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