Magnitude 4.8 Earthquake of Hengchun, Taiwan 2014-08-06

2014-08-06 03:46:06 UTC : Hengchun, Taiwan EARTHQUAKE

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Magnitude: 4.8

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-08-06 03:46:06 UTC
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1. 2014-08-06 11:46:06 UTC+08:00 at epicenter

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Earthquake data:

Location : Position of Epicenter 

22.101°N 121.458°E

Depth : Depth of starting Rupture 

82.1km (51.0mi)

Region : Hengchun, Taiwan

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

a)  74km (46mi) E of Hengchun, Taiwan

b)  79km (49mi) SSE of Taitung City, Taiwan

c)  130km (81mi) ESE of Kaohsiung, Taiwan

d)  152km (94mi) SE of Yujing, Taiwan

e)   753km (468mi) E of Hong Kong, Hong Kong

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.8 mb	± 0.08
Location	22.101°N, 121.458°E	--
Depth	82.1 km	± 4.1 km
Number of Phase Applied1	64
Minimum Distance2	88.4 km (0.79°)
Travel Time Residual3	1.20 sec
Azimuthal Gap4	105°

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)