Magnitude 2.8 Earthquake of Pine Valley, California USA 2013 May 29

2013-05-29 01:20:34 UTC : Valley, California USA EARTHQUAKE

earthquake monitor,California earthquake, earthquake realtime

Magnitude: 2.8

Event Time: Time and Date Starting of Earthquake Rupture 

2013-05-29 01:20:34 UTC

2013-05-28 18:20:34 UTC-07:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

32.882°N 116.263°W

Depth : Depth of starting Rupture 

7.2km (4.5mi)

Region : Pine Valley, California

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

a) 25km (16mi) ENE of Pine Valley, California

b) 47km (29mi) E of Alpine, California

c) 49km (30mi) NE of Tecate, Mexico

d) 50km (31mi) ESE of San Diego Country Estates, California

e) 395km (245mi) W of Phoenix, Arizona

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	2.8 Ml	± 0.20
Location	32.882°N, 116.263°W	± 0.2 km
Depth	7.2 km	± 1.0 km
Number of Phase Applied1	109
Minimum Distance2	15.0 km (0.13°)
Travel Time Residual3	0.27 sec
Azimuthal Gap4	50°

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)