Magnitude 4.8 Earthquake of Amahusu, Indonesia 2015-06-04

2015-06-04 02:34:24 (UTC) : South of Amahusu, Indonesia

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Magnitude : 4.8

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-06-04 02:34:24 (UTC)

Earthquake data:

Location : Position of Epicenter 

4.886°S 128.009°E

Depth : Depth of starting Rupture 

71.8 km

Region : Amahusu, Indonesia

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

a) 129km (80mi) S of Amahusu, Indonesia

b) 132km (82mi) S of Ambon, Indonesia

c) 199km (124mi) SSW of Amahai, Indonesia

d) 487km (303mi) NNE of Dili, East Timor

e) 532km (331mi) W of Tual, Indonesia

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.8 mb	± 0.2
Location	4.886°S 128.009°E	± 8.9 km
Depth	71.8 km	± 8.0
Number of Phase Applied1	19
Minimum Distance2	915.82 km (8.23°)
Travel Time Residual3	1.61 sec
Azimuthal Gap4	83°

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)

Magnitude 5.0 Earthquake of Saumlaki, Indonesia 2015-06-01

2015-06-01 10:28:46 (UTC) : North-NorthWest of Saumlaki, Indonesia

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Magnitude : 5.0

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-06-01 10:28:46 (UTC)

Earthquake data:

Location : Position of Epicenter 

6.119°S 130.641°E

Depth : Depth of starting Rupture 

115.9 km

Region : Saumlaki, Indonesia

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

a) 215km (134mi) NNW of Saumlaki, Indonesia

b) 238km (148mi) WSW of Tual, Indonesia

c) 362km (225mi) SSE of Amahai, Indonesia

d) 382km (237mi) SE of Ambon, Indonesia

e) 621km (386mi) ENE of Dili, East Timor

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	5.0 mb	± 0.1
Location	6.119°S 130.641°E	± 8.1 km
Depth	115.9 km	± 10.1
Number of Phase Applied1	40
Minimum Distance2	218.41 km (1.96°)
Travel Time Residual3	1.29 sec
Azimuthal Gap4	50°

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)

Magnitude 4.2 Earthquake of Saumlaki, Indonesia 2014-07-02

2014-07-02 15:02:19 UTC : Saumlaki, Indonesia EARTHQUAKE

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Magnitude:4.2

Event Time: Time and Date Starting of Earthquake Rupture 

2014-07-02 15:02:19 UTC

1. 2014-07-03 00:02:19 UTC+09:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

6.908°S 129.608°E

Depth : Depth of starting Rupture 

194.0km (120.5mi)

Region : Saumlaki, Indonesia

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

a) 221km (137mi) WNW of Saumlaki, Indonesia

b) 373km (232mi) WSW of Tual, Indonesia

c)  388km (241mi) SSE of Ambon, Indonesia

d) 402km (250mi) S of Amahai, Indonesia
 
e) 481km (299mi) ENE of Dili, East Timor

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.2 mb	± 0.26
Location	6.908°S, 129.608°E	--
Depth	194.0 km	± 15.0 km
Number of Phase Applied1	12
Minimum Distance2	221.3 km (1.99°)
Travel Time Residual3	0.90 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)

Magnitude 4.9 Earthquake of Muara Siberut, Indonesia 2014-06-30

 

2014-06-30 21:58:54 UTC : Muara Siberut, Indonesia EARTHQUAKE

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Magnitude: 4.9

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-06-30 21:58:54 UTC

2014-07-01 04:58:54 UTC+07:00 at epicenter

2014-07-01 03:58:54 UTC+06:00 system time

Earthquake data:

Location : Position of Epicenter 

2.028°S 99.154°E

Depth : Depth of starting Rupture 

33.5km (20.8mi)

Region : Muara Siberut, Indonesia

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

a) 48km (30mi) S of Muara Siberut, Indonesia

b)179km (111mi) SW of Padang, Indonesia

c)189km (117mi) SW of Pariaman, Indonesia

d)216km (134mi) SW of Solok, Indonesia
e) 637km (396mi) SSW of Kuala Lumpur, Malaysia

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.9 mb	± 0.09
Location	2.028°S, 99.154°E	--
Depth	33.5 km	± 6.2 km
Number of Phase Applied1	36
Minimum Distance2	334.3 km (3.00°)
Travel Time Residual3	1.33 sec
Azimuthal Gap4	180°

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)

Aftershock of Magnitude 8.6 Earthquake of OFF THE WEST COAST OF NORTHERN SUMATRA 2012 April 11

2012 April 11 10:43:09 UTC:OFF THE WEST COAST OF NORTHERN SUMATRA

Magnitude: 8.2

Date-Time : Wednesday, April 11, 2012 at 10:43:09 UTC
Wednesday, April 11, 2012 at 04:43:09 PM at epicenter

Location : 0.773°N, 92.452°E
Depth : 16.4 km (10.2 miles)

Region : OFF THE WEST COAST OF NORTHERN SUMATRA

Distances:

a) 618 km (384 miles) SSW of Banda Aceh, Sumatra, Indonesia

b) 712 km (442 miles) W of Sibolga, Sumatra, Indonesia

c) 1062 km (659 miles) WSW of KUALA LUMPUR, Malaysia

d) 1773 km (1101 miles) WNW of JAKARTA, Java, Indonesia

Location Uncertainty: horizontal +/- 14.2 km (8.8 miles); depth +/- 6.4 km (4.0 miles)

Parameters : NST= 99, Nph=101, Dmin=573.3 km, Rmss=0.95 sec, Gp= 40°, M-type=regional moment magnitude (Mw), Version=7