Magnitude 4.6 Earthquake of Linqiong, China 2013 May 11

2013-05-11 00:50:40 UTC : WSW of Linqiong, China EARTHQUAKE

earthquake monitor,China earthquake, earthquake realtime

Magnitude: 4.6

Event Time: Time and Date Starting of Earthquake Rupture 

2013-05-11 00:50:40 UTC

2013-05-11 08:50:40 UTC+08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

30.312°N 102.947°E

Depth : Depth of starting Rupture 

17.6km (11.0mi)

Region : Linqiong, China

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

a) WSW of Linqiong, China

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.6 mb	± 0.08
Location	30.312°N, 102.947°E	± 18.4 km
Depth	17.7 km	± 7.1 km
Number of Phase Applied1	49
Minimum Distance2	575.5 km (5.17°)
Travel Time Residual3	0.82 sec
Azimuthal Gap4	65°

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 1800 (both depth and location)