Monday, April 20, 2015

Magnitude 6.4 Earthquake of Su'ao, Taiwan 2015-04-20

2015-04-20 01:42:58 (UTC) :SouthEast of Su'ao, Taiwan

earthquake monitor, Taiwan earthquake, earthquake realtime

Magnitude : 6.4

Event Time: Time and Date Starting of Earthquake Rupture 
  • 2015-04-20 01:42:58 (UTC)
Earthquake data:

Location : Position of Epicenter 

24.194°N 122.327°E

Depth : Depth of starting Rupture 

29.0 km

Region : Su'ao, Taiwan
Magnitude 6.4 Earthquake of Su'ao, Taiwan 2015-04-20

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

a) 66km (41mi) SE of Su'ao, Taiwan

b) 77km (48mi) ENE of Hualian, Taiwan

c) 85km (53mi) SE of Yilan, Taiwan

d) 119km (74mi) SSE of Keelung, Taiwan

e) 862km (536mi) ENE of Hong Kong, Hong Kong

Location Uncertainty: 
6.4 mww
± 0.1
24.194°N 122.327°E
± 6.1 km
29.0 km
± 1.8
Number of Phase Applied1

Minimum Distance2
74.36 km (0.67°)

Travel Time Residual3
1.28 sec

Azimuthal Gap4

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)

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