Alaska earthquakes

M4.1 earthquake 25 km SSW of Atka, Alaska

A magnitude 4.1 earthquake struck 25 km SSW of Atka, Alaska on Tue, Feb 12, 2019, 5:59 AM HAST (15:59 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M5.1 90 km E of Adak, 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
4.1 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2019-02-12 15:59:39 UTC
Depth
4.0 km (2.5 mi), shallow
Epicenter
51.993° N, 174.376° 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
4.1mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed · ±0.078 · 45 stations
4.0ML, 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 6.0 km horizontally, 6.8 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
182°, poorly surrounded by stations
Stations used
50

Nearby

Within 100 km, magnitude 1.5 and up: 36 in the 60 days after this one and 17 in the 30 days before it.

After

  1. 2.845 km NNW of Atka, Alaska · 2786 days ago · 161 km deep · 65 km away
  2. 4.137 km S of Atka, Alaska · 2786 days ago · 67 km deep · 23 km away
  3. 3.164 km SE of Atka, Alaska · 2784 days ago · 35 km deep · 63 km away
  4. 2.050 km S of Atka, Alaska · 2783 days ago · 0 km deep · 33 km away
  5. 2.174 km ESE of Adak, Alaska · 2782 days ago · 46 km deep · 91 km away
  6. 2.595 km SW of Atka, Alaska · 2780 days ago · 35 km deep · 72 km away
  7. 4.573 km SE of Atka, Alaska · 2779 days ago · 45 km deep · 75 km away
  8. 4.0104 km SE of Atka, Alaska · 2779 days ago · 33 km deep · 98 km away
  9. 3.478 km SE of Atka, Alaska · 2770 days ago · 35 km deep · 75 km away
  10. 2.768 km SW of Atka, Alaska · 2770 days ago · 90 km deep · 48 km away
  11. 4.151 km N of Atka, Alaska · 2770 days ago · 201 km deep · 74 km away
  12. 2.358 km SSW of Atka, Alaska · 2769 days ago · 19 km deep · 35 km away
  13. 2.568 km E of Adak, Alaska · 2769 days ago · 175 km deep · 87 km away
  14. 1.659 km ENE of Adak, Alaska · 2767 days ago · -2 km deep · 100 km away
  15. 5.190 km E of Adak, Alaska · 2765 days ago · 46 km deep · 71 km away
  16. 2.485 km SW of Atka, Alaska · 2765 days ago · 41 km deep · 63 km away
  17. 2.783 km SW of Atka, Alaska · 2765 days ago · 35 km deep · 62 km away
  18. 3.693 km SW of Atka, Alaska · 2765 days ago · 37 km deep · 69 km away
  19. 2.678 km ESE of Adak, Alaska · 2759 days ago · 35 km deep · 92 km away
  20. 1.961 km SW of Atka, Alaska · 2758 days ago · 40 km deep · 37 km away
  21. 2.684 km SW of Atka, Alaska · 2757 days ago · 35 km deep · 61 km away
  22. 4.090 km SW of Atka, Alaska · 2757 days ago · 28 km deep · 67 km away
  23. 4.073 km NNW of Atka, Alaska · 2757 days ago · 223 km deep · 91 km away
  24. 4.084 km SE of Atka, Alaska · 2755 days ago · 53 km deep · 86 km away
  25. 4.091 km SW of Atka, Alaska · 2755 days ago · 39 km deep · 68 km away
  26. 2.847 km WSW of Atka, Alaska · 2754 days ago · 73 km deep · 36 km away
  27. 2.183 km SW of Atka, Alaska · 2754 days ago · 21 km deep · 61 km away
  28. 2.730 km W of Atka, Alaska · 2747 days ago · 35 km deep · 29 km away
  29. 1.977 km SW of Atka, Alaska · 2745 days ago · 20 km deep · 53 km away
  30. 2.776 km W of Atka, Alaska · 2745 days ago · 144 km deep · 68 km away
  31. 3.372 km SE of Atka, Alaska · 2744 days ago · 27 km deep · 72 km away
  32. 2.497 km SW of Atka, Alaska · 2739 days ago · 37 km deep · 74 km away
  33. 2.975 km E of Adak, Alaska · 2738 days ago · 71 km deep · 81 km away
  34. 2.544 km SW of Atka, Alaska · 2732 days ago · 70 km deep · 21 km away
  35. 3.992 km SW of Atka, Alaska · 2731 days ago · 35 km deep · 69 km away
  36. 3.088 km SE of Atka, Alaska · 2729 days ago · 38 km deep · 88 km away

Before

  1. 2.6Andreanof Islands, Aleutian Islands, Alaska · 2788 days ago · 7 km deep · 20 km away
  2. 2.485 km W of Atka, Alaska · 2793 days ago · 108 km deep · 76 km away
  3. 2.373 km E of Adak, Alaska · 2794 days ago · 65 km deep · 84 km away
  4. 2.574 km ESE of Adak, Alaska · 2799 days ago · 35 km deep · 100 km away
  5. 2.796 km S of Atka, Alaska · 2799 days ago · 35 km deep · 73 km away
  6. 2.6Andreanof Islands, Aleutian Islands, Alaska · 2801 days ago · 11 km deep · 25 km away
  7. 2.66 km NNW of Atka, Alaska · 2802 days ago · 143 km deep · 30 km away
  8. 3.193 km ESE of Adak, Alaska · 2804 days ago · 35 km deep · 99 km away
  9. 2.231 km ESE of Atka, Alaska · 2809 days ago · 60 km deep · 44 km away
  10. 2.296 km ESE of Adak, Alaska · 2810 days ago · 25 km deep · 86 km away
  11. 2.372 km E of Adak, Alaska · 2814 days ago · 85 km deep · 83 km away
  12. 2.886 km ESE of Atka, Alaska · 2814 days ago · 35 km deep · 88 km away
  13. 2.350 km SSW of Atka, Alaska · 2814 days ago · 22 km deep · 25 km away
  14. 2.052 km W of Atka, Alaska · 2815 days ago · 72 km deep · 51 km away
  15. 2.276 km ESE of Adak, Alaska · 2816 days ago · 51 km deep · 87 km away
  16. 2.6121 km SSW of Atka, Alaska · 2816 days ago · 17 km deep · 96 km away
  17. 3.672 km N of Atka, Alaska · 2817 days ago · 34 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000jgpt (also filed as ak0191zde5ny). Read Thu, Oct 1, 2026, 1:00 PM UTC.