Magnitude 3.9 Earthquake of Ban Phlu Nai (1), Thailand 2015-05-06

2015-05-06 17:30:14 (UTC) :SouthEast of Ban Phlu Nai (1), Thailand

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Magnitude : 3.9

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-05-06 17:30:14 (UTC)

Earthquake data:

Location : Position of Epicenter 

7.877°N 98.663°E

Depth : Depth of starting Rupture 

6.0 km

Region : Ban Phlu Nai (1), Thailand

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

a) 10km (6mi) SE of Ban Phlu Nai (1), Thailand

b) 28km (17mi) E of Ban Ratsada, Thailand

c) 29km (18mi) E of Phuket, Thailand

d) 29km (18mi) E of Ban Talat Yai, Thailand

e) 621km (386mi) NNW of Kuala Lumpur, Malaysia

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.9 mb	± 0.2
Location	7.877°N 98.663°E	± 8.5 km
Depth	15.0 km	± 3.8
Number of Phase Applied1	17
Minimum Distance2	348.98 km (3.13°)
Travel Time Residual3	0.50 sec
Azimuthal Gap4	127°

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)