Alaska earthquakes

M3.4 earthquake 174 km E of Atka, Alaska

A magnitude 3.4 earthquake struck 174 km E of Atka, Alaska on Mon, Feb 3, 2025, 4:31 PM HAST (02:31 UTC), 111 km (69 mi) below the surface.

A larger quake followed: M4.1 181 km E of Atka, 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
3.4 (mb, body-wave), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-02-04 02:31:23 UTC
Depth
110.7 km (68.8 mi), intermediate-depth
Epicenter
52.481° N, 171.685° 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
3.4mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed · ±0.246 · 4 stations
3.2ML, 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 9.8 km horizontally, 9.4 km in depth
Magnitude uncertainty
±0.25
Depth from
From location
Station coverage gap
187°, poorly surrounded by stations
Stations used
26

Nearby

Within 100 km, magnitude 1.5 and up: 37 in the 60 days after this one and 16 in the 30 days before it.

After

  1. 3.2136 km WSW of Nikolski, Alaska · 606 days ago · 35 km deep · 80 km away
  2. 3.1126 km SW of Nikolski, Alaska · 606 days ago · 35 km deep · 98 km away
  3. 3.3181 km SW of Nikolski, Alaska · 602 days ago · 35 km deep · 77 km away
  4. 3.9128 km W of Nikolski, Alaska · 599 days ago · 68 km deep · 71 km away
  5. 3.1129 km SW of Nikolski, Alaska · 595 days ago · 35 km deep · 90 km away
  6. 4.1181 km E of Atka, Alaska · 595 days ago · 58 km deep · 40 km away
  7. 3.395 km E of Atka, Alaska · 595 days ago · 7 km deep · 79 km away
  8. 3.4187 km E of Atka, Alaska · 595 days ago · 31 km deep · 58 km away
  9. 4.0129 km E of Atka, Alaska · 594 days ago · 72 km deep · 50 km away
  10. 3.6184 km E of Atka, Alaska · 593 days ago · 51 km deep · 42 km away
  11. 3.0157 km SW of Nikolski, Alaska · 592 days ago · 10 km deep · 92 km away
  12. 3.3185 km E of Atka, Alaska · 587 days ago · 35 km deep · 52 km away
  13. 2.8165 km WSW of Nikolski, Alaska · 586 days ago · 34 km deep · 40 km away
  14. 3.0135 km SW of Nikolski, Alaska · 585 days ago · 35 km deep · 91 km away
  15. 2.4140 km ESE of Atka, Alaska · 585 days ago · 42 km deep · 70 km away
  16. 3.8183 km E of Atka, Alaska · 585 days ago · 16 km deep · 11 km away
  17. 2.3129 km WSW of Nikolski, Alaska · 584 days ago · 66 km deep · 72 km away
  18. 3.9123 km WSW of Nikolski, Alaska · 581 days ago · 49 km deep · 86 km away
  19. 2.4168 km SW of Nikolski, Alaska · 581 days ago · 13 km deep · 76 km away
  20. 2.8138 km W of Nikolski, Alaska · 581 days ago · 202 km deep · 79 km away
  21. 3.0140 km WSW of Nikolski, Alaska · 581 days ago · 109 km deep · 58 km away
  22. 3.3152 km SW of Nikolski, Alaska · 578 days ago · 44 km deep · 91 km away
  23. 2.5113 km ESE of Atka, Alaska · 568 days ago · 64 km deep · 84 km away
  24. 3.6166 km WSW of Nikolski, Alaska · 562 days ago · 12 km deep · 45 km away
  25. 3.8125 km SW of Nikolski, Alaska · 559 days ago · 35 km deep · 93 km away
  26. 3.5126 km SW of Nikolski, Alaska · 557 days ago · 48 km deep · 92 km away
  27. 2.199 km ESE of Atka, Alaska · 555 days ago · 40 km deep · 99 km away
  28. 2.7166 km SW of Nikolski, Alaska · 555 days ago · 35 km deep · 76 km away
  29. 2.8166 km SW of Nikolski, Alaska · 555 days ago · 35 km deep · 85 km away
  30. 3.2161 km SW of Nikolski, Alaska · 554 days ago · 35 km deep · 83 km away
  31. 3.0163 km SW of Nikolski, Alaska · 554 days ago · 35 km deep · 80 km away
  32. 3.0114 km ENE of Atka, Alaska · 550 days ago · 200 km deep · 64 km away
  33. 3.2171 km WSW of Nikolski, Alaska · 550 days ago · 35 km deep · 62 km away
  34. 2.7142 km E of Atka, Alaska · 550 days ago · 66 km deep · 60 km away
  35. 3.0170 km ESE of Atka, Alaska · 549 days ago · 35 km deep · 69 km away
  36. 3.6184 km ESE of Atka, Alaska · 549 days ago · 35 km deep · 85 km away
  37. 2.1116 km WSW of Nikolski, Alaska · 549 days ago · 82 km deep · 82 km away

Before

  1. 4.3178 km ESE of Atka, Alaska · 607 days ago · 35 km deep · 96 km away
  2. 3.1173 km E of Atka, Alaska · 607 days ago · 25 km deep · 22 km away
  3. 4.2141 km SW of Nikolski, Alaska · 609 days ago · 50 km deep · 89 km away
  4. 3.2161 km SW of Nikolski, Alaska · 609 days ago · 35 km deep · 77 km away
  5. 4.3137 km SW of Nikolski, Alaska · 612 days ago · 35 km deep · 88 km away
  6. 3.6184 km WSW of Nikolski, Alaska · 615 days ago · 51 km deep · 59 km away
  7. 3.8144 km WNW of Nikolski, Alaska · 621 days ago · 210 km deep · 100 km away
  8. 3.4153 km SW of Nikolski, Alaska · 621 days ago · 35 km deep · 84 km away
  9. 3.0163 km ESE of Atka, Alaska · 624 days ago · 35 km deep · 62 km away
  10. 2.8177 km SW of Nikolski, Alaska · 626 days ago · 35 km deep · 63 km away
  11. 3.7182 km WSW of Nikolski, Alaska · 627 days ago · 35 km deep · 53 km away
  12. 3.1195 km WSW of Nikolski, Alaska · 627 days ago · 35 km deep · 54 km away
  13. 4.2193 km E of Atka, Alaska · 627 days ago · 43 km deep · 48 km away
  14. 3.7140 km WSW of Nikolski, Alaska · 629 days ago · 61 km deep · 60 km away
  15. 3.0169 km WSW of Nikolski, Alaska · 634 days ago · 35 km deep · 57 km away
  16. 3.0158 km WSW of Nikolski, Alaska · 635 days ago · 63 km deep · 58 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000pvv9 (also filed as ak0251lx6qzt). Read Sat, Oct 3, 2026, 5:48 AM UTC.