Magnitude 4.4 Earthquake of Old Iliamna, Alaska 2015-04-02

2015-04-02 13:15:05 (UTC) :SE of Old Iliamna, Alaska

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Magnitude : 4.4

Event Time: Time and Date Starting of Earthquake Rupture 

• 2015-04-02 13:15:05 (UTC)

Earthquake data:

Location : Position of Epicenter 

59.414°N 153.892°W

Depth : Depth of starting Rupture 

114.6 km

Region : Old Iliamna, Alaska

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.4 ml	--
Location	59.414°N 153.892°W	± 0.3 km
Depth	114.6 km	± 0.4
Number of Phase Applied1	109
Minimum Distance2	--
Travel Time Residual3	0.89 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)

Magnitude 3.0 Earthquake of Cantwell, Alaska 2014-10-28

2014-10-28 00:57:29 UTC  : Cantwell, Alaska EARTHQUAKE

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Magnitude : 3.0

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-10-28 00:57:29 UTC

1. 2014-10-27 16:57:29 UTC-08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

1. 63.172°N 150.368°W

Depth : Depth of starting Rupture 

112.3km (69.8mi)

Region : Cantwell, Alaska

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

 a)  75km (47mi) WSW of Cantwell, Alaska

 b)    189km (117mi) NNW of Knik-Fairview, Alaska

 c)  219km (136mi) N of Anchorage, Alaska

1. 
   

 d)  225km (140mi) SW of College, Alaska

1.  e)  846km (526mi) WNW of Whitehorse, Canada

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.0 ml	--
Location	63.172°N, 150.368°W	± 0.3 km
Depth	112.3 km	± 0.4 km
Number of Phase Applied1	77
Minimum Distance2	--
Travel Time Residual3	0.56 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)

Magnitude 3.0 Earthquake of Redoubt Volcano, Alaska 2014-10-25

2014-10-25 14:35:02 UTC  : Redoubt Volcano, Alaska EARTHQUAKE

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Magnitude : 3.0

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-10-25 14:35:02 UTC

1. 2014-10-25 06:35:02 UTC-08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

1. 60.420°N 152.475°W

Depth : Depth of starting Rupture 

92.2km (57.3mi)

Region : Redoubt Volcano, Alaska

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

a)  16km (10mi) ESE of Redoubt Volcano, Alaska

b)   165km (103mi) WSW of Anchorage, Alaska

c)  197km (122mi) SW of Knik-Fairview, Alaska

1. 
   

d)  549km (341mi) SSW of Fairbanks, Alaska

1. e)  953km (592mi) W of Whitehorse, Canada

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	3.0 ml	--
Location	60.420°N, 152.475°W	± 1.0 km
Depth	92.2 km	± 0.7 km
Number of Phase Applied1	79
Minimum Distance2	--
Travel Time Residual3	0.97 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)

Magnitude 4.6 Earthquake of Adak, Alaska 2014-10-25

2014-10-25 10:32:35 UTC  : Adak, Alaska EARTHQUAKE

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Magnitude: 4.6

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-10-25 10:32:35 UTC

1. 2014-10-24 22:32:35 UTC-12:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

1. 51.669°N 175.372°W

Depth : Depth of starting Rupture 

45.7km (28.4mi)

Region : Adak, Alaska

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

 a)    91km (57mi) ESE of Adak, Alaska

 b)    1514km (941mi) SSE of Anadyr', Russia

 c)   1766km (1097mi) E of Petropavlovsk-Kamchatskiy, Russia

 d)    1783km (1108mi) E of Yelizovo, Russia

1.  e)   2646km (1644mi) W of Whitehorse, Canada

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	4.6 mb	± 0.05
Location	51.669°N, 175.372°W	± 1.1 km
Depth	45.7 km	± 4.8 km
Number of Phase Applied1	84
Minimum Distance2	67.0 km (0.60°)
Travel Time Residual3	1.08 sec
Azimuthal Gap4	133°

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 5.1 Earthquake of Ester, Alaska 2014-10-23

2014-10-23 16:30:24  UTC  : Ester, Alaska EARTHQUAKE

earthquake monitor,Alaska earthquake, earthquake realtime

Magnitude: 5.1

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-10-23 16:30:24 UTC

1. 2014-10-23 08:30:24 UTC-08:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

1. 65.167°N 148.981°W

Depth : Depth of starting Rupture 

16.9km (10.5mi)

Region : Ester, Alaska

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

 a)  59km (37mi) NW of Ester, Alaska

 b)    67km (42mi) WNW of College, Alaska

 c)  71km (44mi) WNW of Fairbanks, Alaska

1. 
   

 d)  81km (50mi) WNW of Badger, Alaska

1.  e)  862km (536mi) NW of Whitehorse, Canada

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	5.1 ml	--
Location	65.167°N, 148.981°W	± 0.2 km
Depth	16.9 km	± 0.1 km
Number of Phase Applied1	49
Minimum Distance2	--
Travel Time Residual3	0.87 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)

Magnitude 5.2 Earthquake of Adak, Alaska 2014-10-22

2014-10-22 10:16:19 UTC  : Adak, Alaska EARTHQUAKE

earthquake monitor,Alaska earthquake, earthquake realtime

Magnitude: 5.2

Event Time: Time and Date Starting of Earthquake Rupture 

1. 2014-10-22 10:16:19 UTC

1. 2014-10-22 01:16:19 UTC-09:00 at epicenter

Earthquake data:

Location : Position of Epicenter 

1. 51.680°N 176.927°W

Depth : Depth of starting Rupture 

50.5km (31.4mi)

Region : Adak, Alaska

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

 a)    28km (17mi) SW of Adak, Alaska

 b)    1490km (926mi) SSE of Anadyr', Russia

 c)   1662km (1033mi) E of Petropavlovsk-Kamchatskiy, Russia

 d)   1679km (1043mi) E of Yelizovo, Russia

1.  e)   2730km (1696mi) W of Whitehorse, Canada

Location Uncertainty: 

Parameter	Value	Uncertainty
Magnitude	5.2 mb	± 0.03
Location	51.680°N, 176.927°W	± 1.1 km
Depth	50.5 km	± 2.0 km
Number of Phase Applied1	138
Minimum Distance2	138
Travel Time Residual3	0.99 sec
Azimuthal Gap4	118°

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)