Sunday, June 29, 2014

Magnitude 3.2 Earthquake of Bolinas, California 2014-06-29

2014-06-29 01:51:34 UTC: Bolinas, California EARTHQUAKE

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Magnitude: 3.2


Event Time: Time and Date Starting of Earthquake Rupture 


  1. 2014-06-29 01:51:34 UTC


  1. 2014-06-28 17:51:34 UTC-08:00 at epicenter

  2. 2014-06-29 07:51:34 UTC+06:00 system time


Earthquake data:

Location : Position of Epicenter 

37.813°N 122.942°W

Depth : Depth of starting Rupture 

5.6km (3.5mi)


Region : Bolinas, California

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

a) 24km (15mi) WSW of Bolinas, California

b) 36km (22mi) WSW of Mill Valley, California

c) 36km (22mi) WSW of Tamalpais-Homestead Valley, California

d)
37km (23mi) WSW of San Anselmo, California


e) 152km (94mi) WSW of Sacramento, California

Location Uncertainty: 
Parameter
Value
Uncertainty
Magnitude
3.2 ml
± 0.32
Location
37.813°N, 122.942°W
± 0.4 km
Depth
5.6 km
± 0.9 km
Number of Phase Applied1
71

Minimum Distance2
13.8 km (0.12°)

Travel Time Residual3
0.21 sec

Azimuthal Gap4
135°

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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