Magnitude 5.1 Earthquake of Hengchun, Taiwan 2014-07-17

2014-07-17 06:11:51 UTC : Hengchun, Taiwan EARTHQUAKE

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Magnitude: 5.1

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-07-17 06:11:51 UTC

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1. 2014-07-17 14:11:51 UTC+08:00 at epicenter

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Earthquake data:

Location : Position of Epicenter 

1. 22.098°N 121.494°E

Depth : Depth of starting Rupture 

10.0km (6.2mi)

Region : Hengchun, Taiwan

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

a)  78km (48mi) E of Hengchun, Taiwan

b)  81km (50mi) SSE of Taitung City, Taiwan

c)  134km (83mi) ESE of Kaohsiung, Taiwan

d)  155km (96mi) SE of Yujing, Taiwan

e)  756km (470mi) E of Hong Kong, Hong Kong

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	5.1 mb	± 0.05
Location	22.098°N, 121.494°E	--
Depth	10.0 km	± 1.8 km
Number of Phase Applied1	162
Minimum Distance2	90.4 km (0.81°)
Travel Time Residual3	0.96 sec
Azimuthal Gap4	95°

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)