Alaska earthquakes

M2.7 earthquake 145 km SE of Atka, Alaska

A magnitude 2.7 earthquake struck 145 km SE of Atka, Alaska on Sat, Dec 21, 2024, 8:18 PM HAST (06:18 UTC), 17 km (11 mi) below the surface.

A larger quake followed: M4.4 69 km ESE of Atka, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
2.7 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2024-12-22 06:18:16 UTC
Depth
17.3 km (10.8 mi), shallow
Epicenter
51.363° N, 172.570° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
2.7ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.128 · 8 stations
2.9ML, local (Richter)Alaska Earthquake CenterPreliminary

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 10.7 km horizontally, 15.8 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
225°, poorly surrounded by stations
Stations used
15

Nearby

Within 100 km, magnitude 1.5 and up: 33 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 3.247 km ESE of Atka, Alaska · 647 days ago · 11 km deep · 98 km away
  2. 3.046 km SE of Atka, Alaska · 646 days ago · 10 km deep · 99 km away
  3. 2.370 km SE of Atka, Alaska · 639 days ago · 32 km deep · 76 km away
  4. 3.379 km SE of Atka, Alaska · 637 days ago · 35 km deep · 66 km away
  5. 3.875 km SE of Atka, Alaska · 637 days ago · 56 km deep · 72 km away
  6. 3.976 km SE of Atka, Alaska · 637 days ago · 35 km deep · 73 km away
  7. 3.9198 km SSE of Atka, Alaska · 637 days ago · 10 km deep · 90 km away
  8. 3.289 km SE of Atka, Alaska · 634 days ago · 35 km deep · 58 km away
  9. 2.7136 km SSE of Atka, Alaska · 630 days ago · 10 km deep · 91 km away
  10. 3.050 km ESE of Atka, Alaska · 628 days ago · 10 km deep · 96 km away
  11. 2.9181 km SSE of Atka, Alaska · 628 days ago · 10 km deep · 65 km away
  12. 2.468 km SE of Atka, Alaska · 627 days ago · 26 km deep · 77 km away
  13. 3.4214 km SSE of Atka, Alaska · 626 days ago · 10 km deep · 97 km away
  14. 3.0163 km ESE of Atka, Alaska · 623 days ago · 35 km deep · 80 km away
  15. 2.8163 km SSE of Atka, Alaska · 623 days ago · 10 km deep · 60 km away
  16. 2.789 km SE of Atka, Alaska · 622 days ago · 35 km deep · 57 km away
  17. 2.887 km SE of Atka, Alaska · 622 days ago · 35 km deep · 59 km away
  18. 2.974 km SSE of Atka, Alaska · 622 days ago · 14 km deep · 86 km away
  19. 2.977 km SE of Atka, Alaska · 621 days ago · 35 km deep · 69 km away
  20. 2.999 km SE of Atka, Alaska · 621 days ago · 35 km deep · 46 km away
  21. 2.475 km SSE of Atka, Alaska · 621 days ago · 5 km deep · 94 km away
  22. 3.1154 km SSE of Atka, Alaska · 613 days ago · 10 km deep · 68 km away
  23. 2.874 km ESE of Atka, Alaska · 612 days ago · 50 km deep · 74 km away
  24. 2.060 km SSE of Atka, Alaska · 612 days ago · 23 km deep · 97 km away
  25. 4.291 km SE of Atka, Alaska · 611 days ago · 25 km deep · 55 km away
  26. 4.3178 km ESE of Atka, Alaska · 606 days ago · 35 km deep · 62 km away
  27. 3.799 km SSE of Atka, Alaska · 605 days ago · 35 km deep · 66 km away
  28. 2.676 km SSE of Atka, Alaska · 604 days ago · 35 km deep · 90 km away
  29. 4.469 km ESE of Atka, Alaska · 601 days ago · 90 km deep · 89 km away
  30. 2.278 km ESE of Atka, Alaska · 594 days ago · 57 km deep · 74 km away
  31. 4.0129 km E of Atka, Alaska · 593 days ago · 72 km deep · 100 km away
  32. 2.572 km SE of Atka, Alaska · 591 days ago · 35 km deep · 76 km away
  33. 3.0108 km SE of Atka, Alaska · 590 days ago · 35 km deep · 44 km away

Before

  1. 2.074 km ESE of Atka, Alaska · 649 days ago · 43 km deep · 72 km away
  2. 3.1180 km SSE of Atka, Alaska · 650 days ago · 10 km deep · 96 km away
  3. 3.2139 km E of Atka, Alaska · 651 days ago · 35 km deep · 86 km away
  4. 2.064 km SE of Atka, Alaska · 651 days ago · 21 km deep · 85 km away
  5. 2.9113 km SSE of Atka, Alaska · 652 days ago · 10 km deep · 74 km away
  6. 3.278 km SSE of Atka, Alaska · 661 days ago · 10 km deep · 83 km away
  7. 3.8184 km SSE of Atka, Alaska · 663 days ago · 10 km deep · 64 km away
  8. 3.6155 km ESE of Atka, Alaska · 664 days ago · 24 km deep · 68 km away
  9. 4.3142 km E of Atka, Alaska · 664 days ago · 50 km deep · 97 km away
  10. 3.1160 km SSE of Atka, Alaska · 668 days ago · 10 km deep · 63 km away
  11. 3.579 km ESE of Atka, Alaska · 670 days ago · 35 km deep · 72 km away
  12. 3.148 km ESE of Atka, Alaska · 671 days ago · 10 km deep · 98 km away
  13. 3.1199 km SSE of Atka, Alaska · 677 days ago · 10 km deep · 74 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000pkbd (also filed as ak024geije2x). Read Fri, Oct 2, 2026, 9:18 AM UTC.