Magnitude 4.6 Earthquake of Hengchun, Taiwan 2014-09-29

2014-09-29 16:44:18 UTC : Hengchun, Taiwan EARTHQUAKE

earthquake monitor,Taiwan earthquake, earthquake realtime

Magnitude: 4.6

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-09-29 16:44:18 UTC
2. 
   

1. 2014-09-30 00:44:18 UTC+08:00 at epicenter

1. 
   

Earthquake data:

Location : Position of Epicenter 

21.503°N 121.303°E

Depth : Depth of starting Rupture 

35.7km (22.2mi)

Region : Hengchun, Taiwan

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

a)  80km (50mi) SE of Hengchun, Taiwan

b)  139km (86mi) S of Taitung City, Taiwan

c)   160km (99mi) SE of Kaohsiung, Taiwan

d)  199km (124mi) SE of Tainan, Taiwan

e)   743km (462mi) E of Hong Kong, Hong Kong

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.6 mb	± 0.11
Location	21.503°N, 121.303°E	--
Depth	35.7 km	± 8.6 km
Number of Phase Applied1	47
Minimum Distance2	147.4 km (1.32°)
Travel Time Residual3	1.00 sec
Azimuthal Gap4	120°

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)