Magnitude 4.8 Earthquake of Tanggulashan, China 2015-05-30

2015-05-30 00:04:45 (UTC) : West-NorthWest of Tanggulashan, China

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Magnitude : 4.8

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-05-30 00:04:45 (UTC)

Earthquake data:

Location : Position of Epicenter 

34.606°N 90.998°E

Depth : Depth of starting Rupture 

10.0 km

Region : Tanggulashan, China

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

a) 137km (85mi) WNW of Tanggulashan, China

b) 356km (221mi) NNW of Nagqu, China

c) 406km (252mi) WSW of Golmud He, China

d) 515km (320mi) N of Deqen, China

e) 802km (498mi) N of Thimphu, Bhutan

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.8 mb	± 0.0
Location	34.606°N 90.998°E	± 9.1 km
Depth	10.0 km	± 1.9
Number of Phase Applied1	103
Minimum Distance2	1006.21 km (9.04°)
Travel Time Residual3	0.66 sec
Azimuthal Gap4	77°

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 3.4 Earthquakeof Fairfield, Illinois 2015-05-30

2015-05-30 00:41:14 (UTC) : North of Fairfield, Illinois

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Magnitude : 3.4

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-05-30 00:41:14 (UTC)

Earthquake data:

Location : Position of Epicenter 

38.458°N 88.355°W

Depth : Depth of starting Rupture 

17.7 km

Region : Fairfield, Illinois

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

a) 8km (5mi) N of Fairfield, Illinois

b) 50km (31mi) ENE of Mount Vernon, Illinois

c) 68km (42mi) E of Centralia, Illinois

d) 75km (47mi) SSE of Effingham, Illinois

e) 186km (116mi) SE of Springfield, Illinois

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.4 mlg	--
Location	38.458°N 88.355°W	± 0.6 km
Depth	17.7 km	± 0.9
Number of Phase Applied1	27
Minimum Distance2	9.08 km (0.08°)
Travel Time Residual3	0.4 sec
Azimuthal Gap4	52°

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 4.7 Earthquake of Itoman, Japan 2015-05-30

2015-05-30 02:37:33 (UTC) : South-East of Itoman, Japan

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Magnitude : 4.7

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-05-30 02:37:33 (UTC)

Earthquake data:

Location : Position of Epicenter 

25.279°N 128.639°E

Depth : Depth of starting Rupture 

10.0 km

Region : Itoman, Japan

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

a) 135km (84mi) SE of Itoman, Japan

b) 139km (86mi) SE of Tomigusuku, Japan

c) 140km (87mi) SE of Ginowan, Japan

d) 140km (87mi) SSE of Haebaru, Japan

e) 1371km (852mi) S of Seoul, South Korea

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.7 mb	± 0.1
Location	25.279°N 128.639°E	± 10.9 km
Depth	10.0 km	± 1.9
Number of Phase Applied1	53
Minimum Distance2	176.33 km (1.58°)
Travel Time Residual3	1.11 sec
Azimuthal Gap4	126°

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 4.6 Earthquake of San Antonio de los Cobres, Argentina 2015-05-29

2015-05-29 02:52:53 (UTC) : West of San Antonio de los Cobres, Argentina

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Magnitude : 4.6

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-05-29 02:52:53 (UTC)

Earthquake data:

Location : Position of Epicenter 

24.201°S 67.029°W

Depth : Depth of starting Rupture 

165.3 km

Region : San Antonio de los Cobres, Argentina

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

a) 72km (45mi) W of San Antonio de los Cobres, Argentina

b) 176km (109mi) WNW of Salta, Argentina

c) 176km (109mi) W of San Salvador de Jujuy, Argentina

d) 184km (114mi) W of Palpala, Argentina

e) 860km (534mi) S of La Paz, Bolivia

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.6 mb	± 0.0
Location	24.201°S 67.029°W	± 7.8 km
Depth	165.3 km	± 7.0
Number of Phase Applied1	74
Minimum Distance2	260.71 km (2.34°)
Travel Time Residual3	1.33 sec
Azimuthal Gap4	55°

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 6.7 Earthquake of Chirikof Island, Alaska 2015-05-29

2015-05-29 07:00:09 (UTC) : North-NorthWest of Chirikof Island, Alaska

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Magnitude : 6.7

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-05-29 07:00:09 (UTC)

Earthquake data:

Location : Position of Epicenter 

56.589°N 156.435°W

Depth : Depth of starting Rupture 

55.6 km

Region : Chirikof Island, Alaska

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

a) 98km (61mi) NNW of Chirikof Island, Alaska

b) 637km (396mi) SW of Anchorage, Alaska

c) 673km (418mi) SW of Knik-Fairview, Alaska

d) 1032km (641mi) SSW of Fairbanks, Alaska

e) 1316km (818mi) W of Whitehorse, Canada

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	6.7 mb	--
Location	56.589°N 156.435°W	± 0.5 km
Depth	55.6 km	± 1.1
Number of Phase Applied1	67
Minimum Distance2	--
Travel Time Residual3	0.71 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)