Alaska earthquakes

M3.3 earthquake 171 km WSW of Nikolski, Alaska

A magnitude 3.3 earthquake struck 171 km WSW of Nikolski, Alaska on Wed, Mar 16, 2022, 12:53 AM HADT (09:53 UTC), 94 km (59 mi) below the surface.

A larger quake followed: M4.0 121 km WSW of Nikolski, Alaska. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
3.3 (ml), minor
Local time
UTC
2022-03-16 09:53:07 UTC
Depth
94.5 km (58.7 mi), intermediate-depth
Epicenter
52.648° N, 171.353° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 15.6 km horizontally, 16.1 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
178°
Stations used
27

Nearby

Within 100 km, magnitude 1.5 and up: 24 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 3.4206 km ESE of Atka, Alaska · 1659 days ago · 32 km deep · 94 km away
  2. 3.1173 km WSW of Nikolski, Alaska · 1647 days ago · 10 km deep · 50 km away
  3. 2.5174 km E of Atka, Alaska · 1644 days ago · 19 km deep · 69 km away
  4. 2.9151 km ENE of Atka, Alaska · 1643 days ago · 136 km deep · 48 km away
  5. 2.8120 km SW of Nikolski, Alaska · 1641 days ago · 35 km deep · 87 km away
  6. 2.9138 km E of Atka, Alaska · 1638 days ago · 35 km deep · 91 km away
  7. 3.3164 km SW of Nikolski, Alaska · 1635 days ago · 35 km deep · 65 km away
  8. 3.0128 km WSW of Nikolski, Alaska · 1632 days ago · 35 km deep · 60 km away
  9. 3.6135 km E of Atka, Alaska · 1624 days ago · 72 km deep · 83 km away
  10. 3.7154 km SW of Nikolski, Alaska · 1623 days ago · 10 km deep · 95 km away
  11. 4.0121 km WSW of Nikolski, Alaska · 1621 days ago · 52 km deep · 69 km away
  12. 2.7195 km WSW of Nikolski, Alaska · 1616 days ago · 35 km deep · 70 km away
  13. 3.2194 km WSW of Nikolski, Alaska · 1616 days ago · 35 km deep · 70 km away
  14. 3.2147 km W of Nikolski, Alaska · 1614 days ago · 181 km deep · 61 km away
  15. 3.7167 km W of Nikolski, Alaska · 1614 days ago · 126 km deep · 4 km away
  16. 2.4118 km SW of Nikolski, Alaska · 1614 days ago · 28 km deep · 91 km away
  17. 3.6185 km SW of Nikolski, Alaska · 1611 days ago · 48 km deep · 84 km away
  18. 4.0130 km WSW of Nikolski, Alaska · 1611 days ago · 45 km deep · 68 km away
  19. 2.8110 km ENE of Atka, Alaska · 1608 days ago · 35 km deep · 89 km away
  20. 2.2179 km E of Atka, Alaska · 1606 days ago · 26 km deep · 69 km away
  21. 2.2134 km SW of Nikolski, Alaska · 1606 days ago · 26 km deep · 71 km away
  22. 2.2136 km SW of Nikolski, Alaska · 1604 days ago · 33 km deep · 88 km away
  23. 2.6163 km SW of Nikolski, Alaska · 1603 days ago · 35 km deep · 74 km away
  24. 2.1174 km ENE of Atka, Alaska · 1600 days ago · 135 km deep · 27 km away

Before

  1. 2.8191 km ESE of Atka, Alaska · 1665 days ago · 35 km deep · 92 km away
  2. 3.8109 km SW of Nikolski, Alaska · 1667 days ago · 49 km deep · 95 km away
  3. 2.4152 km E of Atka, Alaska · 1667 days ago · 67 km deep · 50 km away
  4. 2.0126 km E of Atka, Alaska · 1668 days ago · 33 km deep · 84 km away
  5. 3.187 km SW of Nikolski, Alaska · 1673 days ago · 72 km deep · 99 km away
  6. 2.4161 km SW of Nikolski, Alaska · 1675 days ago · 15 km deep · 77 km away
  7. 3.7109 km W of Nikolski, Alaska · 1681 days ago · 101 km deep · 74 km away
  8. 2.9193 km E of Atka, Alaska · 1685 days ago · 36 km deep · 73 km away
  9. 3.282 km W of Nikolski, Alaska · 1687 days ago · 236 km deep · 89 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000hfeb (also filed as ak0223g6zb42). Read Wed, Sep 30, 2026, 12:38 PM UTC.