Magnitude 3.1 Earthquake of San Jacinto, California 2014-09-14

2014-09-14 22:16:55 UTC :San Jacinto, California EARTHQUAKE

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Magnitude: 3.1

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-14 22:16:55 UTC
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1. 2014-09-14 15:16:55 UTC-07:00 at epicenter

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Earthquake data:

Location : Position of Epicenter 

1. 33.798°N 116.965°W

Depth : Depth of starting Rupture 

13.2km (8.2mi)

Region : San Jacinto, California

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

a)  1km (1mi) NNW of San Jacinto, California

b)  5km (3mi) N of Hemet, California

c)  6km (4mi) NNW of East Hemet, California

d)  8km (5mi) NW of Valle Vista, California

e)  455km (283mi) W of Phoenix, Arizona

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.1 ml	± 0.23
Location	33.798°N, 116.965°W	± 0.2 km
Depth	13.2 km	± 0.4 km
Number of Phase Applied1	164
Minimum Distance2	1.1 km (0.01°)
Travel Time Residual3	0.23 sec
Azimuthal Gap4	23°

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)