Sunday, October 12, 2014

Magnitude 4.4 Earthquake of Muara Siberut, Indonesia 2014-10-12

2014-10-12 10:59:20 UTC : Muara Siberut, Indonesia EARTHQUAKE

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Magnitude: 4.4


Event Time: Time and Date Starting of Earthquake Rupture 


  1. 2014-10-12 10:59:20 UTC

  1. 2014-10-12 17:59:20 UTC+07:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

2.105°S 99.213°E

Depth : Depth of starting Rupture

30.9km (19.2mi)


Region : Muara Siberut, Indonesia

Magnitude 4.4 Earthquake of Muara Siberut, Indonesia 2014-10-12





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

a)  56km (35mi) S of Muara Siberut, Indonesia

b)  180km (112mi) SW of Padang, Indonesia

c)  192km (119mi) SSW of Pariaman, Indonesia

d)  216km (134mi) SW of Solok, Indonesia

e)  638km (396mi) SW of Singapore, Singapore

Location Uncertainty: 
Parameter
Value
Uncertainty
Magnitude
4.4 mb
± 0.16
Location
2.105°S, 99.213°E
--
Depth
30.9 km
± 6.9 km
Number of Phase Applied1
28

Minimum Distance2
337.0 km (3.03°)

Travel Time Residual3
0.86 sec

Azimuthal Gap4
207°

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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