Thursday, September 4, 2014

Magnitude 2.8 Earthquake of East Quincy, California 2014-09-04

2014-09-04 00:40:53 UTC :East Quincy, California EARTHQUAKE

earthquake monitor,California earthquake, earthquake realtime

Magnitude: 2.8


Event Time: Time and Date Starting of Earthquake Rupture 


  1. 2014-09-04 00:40:53 UTC

  1. 2014-09-03 17:40:53 UTC-07:00 at epicenter

Earthquake data:

Location : Position of Epicenter 


  1. 39.816°N 120.707°W

Depth : Depth of starting Rupture 

0.1km (0.1mi)


Region :East Quincy, California



Magnitude 2.8 Earthquake of East Quincy, California 2014-09-04




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

a)  19km (12mi) SE of East Quincy, California

b)  64km (40mi) S of Susanville, California

c)  72km (45mi) NW of Truckee, California

d)  
74km (46mi) NNE of Grass Valley, California

e)  110km (68mi) NW of Carson City, Nevada


Location Uncertainty: 
Parameter
Value
Uncertainty
Magnitude
2.8 Md
± 0.20
Location
39.816°N, 120.707°W
± 0.5 km
Depth
0.1 km
± 4.7 km
Number of Phase Applied1
20

Minimum Distance2
7.0 km (0.06°)

Travel Time Residual3
0.27 sec

Azimuthal Gap4
58°

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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