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Strong mag. 6.1 earthquake - Bering Sea, 32 mi west of Amatignak Island, Aleutians West County, Alaska, USA, on Sunday, 3 Jan 2:38 am (GMT -10)

Very strong mag. 6.1 earthquake - Bering Sea, 146 mi west of Adak, Aleutians West, Alaska, USA, on Sunday, Jan 3, 2021 at 2:38 am (GMT -10)

Very strong mag. 6.1 earthquake - Bering Sea, 146 mi west of Adak, Aleutians West, Alaska, USA, on Sunday, Jan 3, 2021 at 2:38 am (GMT -10) Very strong mag. 6.1 earthquake - Bering Sea, 146 mi west of Adak, Aleutians West, Alaska, USA, on Sunday, Jan 3, 2021 at 2:38 am (GMT -10)

Very strong magnitude 6.1 earthquake at 17 km depth

3 Jan 12:47 UTC: First to report: USGS after 9 minutes.
3 Jan 12:58: Magnitude recalculated from 5.7 to 6.1. Hypocenter depth recalculated from 42.0 to 17.1 km (from 26 to 10.6 mi). Epicenter location corrected by 34 km (21 mi) towards N.
8 Jan 02:00: Now using data updates from USGS

Earthquake details

Date & timeJan 3, 2021 12:38:48 UTC
Local time at epicenterSunday, Jan 3, 2021 at 2:38 am (GMT -10)
StatusConfirmed
Magnitude6.1
Depth17.1 km
Epicenter latitude / longitude51.1851°N / 179.8389°W (Bering Sea, Alaska, United States)
Antipode51.185°S / 0.161°E
Shaking intensityStrong shaking near epicenter
Felt1 report
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoSemisopochnoi (92 km / 57 mi)
Nearby towns and cities235 km (146 mi) WSW of Adak (pop: 332) | Show on map | Quakes nearby
405 km (251 mi) WSW of Atka (pop: 64) | Show on map | Quakes nearby
Estimated seismic energy released8.9 x 1013 joules (24.8 gigawatt hours, equivalent to 21301 tons of TNT or 1.3 atomic bombs!) | about seismic energy
Show interactive Map
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag.DepthLocationSource
6.117 km235 Km WSW of Adak, Alaska, USAUSGS
6.025 kmAndreanof Islands, Aleutian Islands, USAGFZ
6.128 kmANDREANOF ISLANDS, ALEUTIAN IS., USAEMSC
6.051 kmAndreanof Islands, Aleutian Islands, USAGeoAu
5.8175 kmAndreanof Islands, Aleutian Islands, USABMKG
5.840 kmAndreanof Islands, Aleutian Islands, Alaska, USANIEP

Seismograms

Seismic station: Tucson, Arizona (TUC/IU network) | Distance from quake: 5861 km / 3642 mi | Show on map | Station Info
Seismic station Tucson, Arizona: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.02-2.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Translate
Telford (8464.3 km N of epicenter) [Map] / not felt
Russia, Derbent / Weak shaking (MMI III)

Aftershocks

[More info]

Recorded aftershocks, latest first (25 quakes)

Date and timeMag
Depth
LocationDetails
Jun 15, 2021 14:07
1 year 40 weeks ago
3.8

54 km
Bering Sea, Alaska, USAMore
Jun 12, 2021 07:48
1 year 40 weeks ago
2.8

35 km
Bering Sea, Alaska, USAMore
Jun 8, 2021 22:02
1 year 41 weeks ago
3.1

32 km
Bering Sea, Alaska, USAMore
May 18, 2021 05:39
1 year 44 weeks ago
5.0

35 km
Bering Sea, Alaska, USAMore
May 18, 2021 02:09
1 year 44 weeks ago
3.4

28 km
Bering Sea, Alaska, USAMore
May 18, 2021 02:05
1 year 44 weeks ago
3.3

16 km
Bering Sea, Alaska, USAMore
May 18, 2021 00:58
1 year 44 weeks ago
3.0

12 km
North Pacific Ocean, Alaska, USAMore
May 17, 2021 20:25
1 year 44 weeks ago
5.4

23 km
Bering Sea, Alaska, USAMore
May 14, 2021 01:31
1 year 44 weeks ago
3.4

29 km
Bering Sea, 126 mi W of Adak, Aleutians West, Alaska, USAMore
Apr 27, 2021 10:16
1 year 47 weeks ago
3.8

42 km
Bering Sea, Alaska, USAMore
Mar 3, 2021 00:21
2 years ago
4.7

10 km
North Pacific Ocean, 131 mi SW of Adak, Aleutians West, Alaska, USAMore
Mar 2, 2021 10:02
2 years ago
4.4

10 km
North Pacific Ocean, 135 mi SW of Adak, Aleutians West, Alaska, USAMore
Feb 28, 2021 10:44
2 years ago
5.4

24 km
Bering Sea, 114 mi SW of Adak, Aleutians West, Alaska, USAMore
Feb 22, 2021 08:48
2 years ago
3.6

18 km
Bering Sea, 130 mi SW of Adak, Aleutians West, Alaska, USAMore
Feb 21, 2021 15:02
2 years ago
4.8

10 km
North Pacific Ocean, 134 mi SW of Adak, Aleutians West, Alaska, USAMore
Feb 20, 2021 04:14
2 years ago
4.0

29 km
Bering Sea, 134 mi SW of Adak, Aleutians West, Alaska, USAMore
Feb 20, 2021 04:10
2 years ago
3.9

10 km
Bering Sea, 136 mi SW of Adak, Aleutians West, Alaska, USAMore
Feb 19, 2021 23:03
2 years ago
3.6

22 km
Bering Sea, 116 mi SW of Adak, Aleutians West, Alaska, USAMore
Feb 19, 2021 12:29
2 years ago
3.9

14 km
Bering Sea, 137 mi SW of Adak, Aleutians West, Alaska, USAMore
Feb 19, 2021 09:19
2 years ago
4.8

47 km
Bering Sea, 117 mi W of Adak, Aleutians West, Alaska, USAMore
Feb 19, 2021 09:11
2 years ago - felt
5.6

37 km
Bering Sea, 127 mi SW of Adak, Aleutians West, Alaska, USAMore
Feb 19, 2021 09:08
2 years ago
3.7

11 km
North Pacific Ocean, 133 mi SW of Adak, Aleutians West, Alaska, USAMore
Feb 14, 2021 19:13
2 years ago
5.2

19 km
Bering Sea, Alaska, USAMore
Jan 5, 2021 03:22
2 years ago
2.6

38 km
Bering Sea, 1843 mi W of Juneau, Alaska, USAMore
Jan 5, 2021 03:22
2 years ago
2.9

35 km
Bering Sea, 1847 mi W of Juneau, Alaska, USAMore

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