Alaska earthquakes

M3.8 earthquake 53 km S of Adak, Alaska

A magnitude 3.8 earthquake struck 53 km S of Adak, Alaska on Mon, Feb 4, 2019, 8:15 AM HAST (18:15 UTC), 40 km (25 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
3.8 (mb, body-wave), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2019-02-04 18:15:19 UTC
Depth
39.7 km (24.7 mi), shallow
Epicenter
51.392° N, 176.559° 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
3.8mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed · ±0.128 · 16 stations
3.3ML, 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 3.8 km horizontally, 13.9 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
226°, poorly surrounded by stations
Stations used
31

Nearby

Within 100 km, magnitude 1.5 and up: 106 in the 60 days after this one and 59 in the 30 days before it.

After

  1. 3.860 km ESE of Adak, Alaska · 2796 days ago · 50 km deep · 58 km away · felt by 2
  2. 2.324 km SSE of Adak, Alaska · 2796 days ago · 48 km deep · 32 km away
  3. 2.460 km SSE of Adak, Alaska · 2795 days ago · 26 km deep · 19 km away
  4. 2.373 km E of Adak, Alaska · 2794 days ago · 65 km deep · 83 km away
  5. 2.5Andreanof Islands, Aleutian Islands, Alaska · 2793 days ago · 69 km deep · 52 km away
  6. 2.163 km SSW of Adak, Alaska · 2793 days ago · 25 km deep · 31 km away
  7. 4.453 km ENE of Adak, Alaska · 2790 days ago · 157 km deep · 91 km away
  8. 1.947 km S of Adak, Alaska · 2788 days ago · 35 km deep · 11 km away
  9. 1.658 km SW of Adak, Alaska · 2788 days ago · 36 km deep · 40 km away
  10. 2.177 km SE of Adak, Alaska · 2788 days ago · 16 km deep · 55 km away
  11. 2.452 km SE of Adak, Alaska · 2787 days ago · 57 km deep · 35 km away
  12. 2.583 km SE of Adak, Alaska · 2787 days ago · 35 km deep · 50 km away
  13. 2.358 km WNW of Adak, Alaska · 2787 days ago · 102 km deep · 91 km away
  14. 1.843 km W of Adak, Alaska · 2786 days ago · 73 km deep · 72 km away
  15. 2.324 km SE of Adak, Alaska · 2786 days ago · 52 km deep · 34 km away
  16. 2.459 km SSE of Adak, Alaska · 2786 days ago · 20 km deep · 27 km away
  17. 2.475 km SW of Adak, Alaska · 2786 days ago · 38 km deep · 62 km away
  18. 5.025 km SW of Adak, Alaska · 2785 days ago · 55 km deep · 44 km away · felt by 2
  19. 2.339 km SSW of Adak, Alaska · 2785 days ago · 47 km deep · 27 km away
  20. 2.242 km SSW of Adak, Alaska · 2785 days ago · 46 km deep · 24 km away
  21. 2.030 km SSW of Adak, Alaska · 2785 days ago · 53 km deep · 29 km away
  22. 1.926 km SW of Adak, Alaska · 2785 days ago · 50 km deep · 39 km away
  23. 2.340 km SSW of Adak, Alaska · 2785 days ago · 43 km deep · 24 km away
  24. 3.983 km S of Adak, Alaska · 2784 days ago · 35 km deep · 32 km away
  25. 1.846 km SSW of Adak, Alaska · 2784 days ago · 35 km deep · 20 km away
  26. 1.946 km SSW of Adak, Alaska · 2784 days ago · 39 km deep · 20 km away
  27. 2.552 km S of Adak, Alaska · 2784 days ago · 35 km deep · 13 km away
  28. 1.961 km SE of Adak, Alaska · 2784 days ago · 26 km deep · 31 km away
  29. 2.250 km SSW of Adak, Alaska · 2783 days ago · 26 km deep · 16 km away
  30. 2.199 km SW of Adak, Alaska · 2782 days ago · 25 km deep · 76 km away
  31. 2.174 km ESE of Adak, Alaska · 2782 days ago · 46 km deep · 74 km away
  32. 2.653 km S of Adak, Alaska · 2781 days ago · 35 km deep · 14 km away
  33. 2.644 km SSW of Adak, Alaska · 2781 days ago · 40 km deep · 20 km away
  34. 4.151 km SSW of Adak, Alaska · 2781 days ago · 35 km deep · 16 km away
  35. 1.88 km NNE of Adak, Alaska · 2781 days ago · 5 km deep · 62 km away
  36. 2.553 km SSW of Adak, Alaska · 2781 days ago · 35 km deep · 17 km away
  37. 1.845 km S of Adak, Alaska · 2781 days ago · 24 km deep · 14 km away
  38. 1.937 km SSW of Adak, Alaska · 2781 days ago · 47 km deep · 26 km away
  39. 2.595 km SW of Atka, Alaska · 2780 days ago · 35 km deep · 97 km away
  40. 3.064 km SSE of Adak, Alaska · 2777 days ago · 35 km deep · 17 km away
  41. 1.846 km SSW of Adak, Alaska · 2777 days ago · 36 km deep · 22 km away
  42. 2.433 km SSE of Adak, Alaska · 2774 days ago · 40 km deep · 27 km away
  43. 2.285 km WSW of Adak, Alaska · 2774 days ago · 67 km deep · 90 km away
  44. 2.419 km S of Adak, Alaska · 2773 days ago · 71 km deep · 34 km away
  45. 2.632 km SW of Adak, Alaska · 2772 days ago · 62 km deep · 38 km away
  46. 1.619 km W of Adak, Alaska · 2772 days ago · -2 km deep · 61 km away
  47. 1.718 km W of Adak, Alaska · 2771 days ago · 0 km deep · 58 km away
  48. 2.128 km SSE of Adak, Alaska · 2771 days ago · 52 km deep · 31 km away
  49. 2.171 km WSW of Adak, Alaska · 2771 days ago · 66 km deep · 85 km away
  50. 2.568 km E of Adak, Alaska · 2769 days ago · 175 km deep · 87 km away
  51. 1.641 km ENE of Adak, Alaska · 2769 days ago · 4 km deep · 81 km away
  52. 1.541 km ENE of Adak, Alaska · 2769 days ago · 3 km deep · 81 km away
  53. 2.458 km SE of Adak, Alaska · 2768 days ago · 35 km deep · 28 km away
  54. 2.183 km SSE of Adak, Alaska · 2768 days ago · 15 km deep · 31 km away
  55. 1.659 km ENE of Adak, Alaska · 2768 days ago · -2 km deep · 91 km away
  56. 1.748 km W of Adak, Alaska · 2766 days ago · 8 km deep · 73 km away
  57. 5.190 km E of Adak, Alaska · 2765 days ago · 46 km deep · 93 km away
  58. 3.693 km SW of Atka, Alaska · 2765 days ago · 37 km deep · 99 km away
  59. 2.649 km SSE of Adak, Alaska · 2765 days ago · 34 km deep · 11 km away
  60. 1.635 km WSW of Adak, Alaska · 2765 days ago · 11 km deep · 54 km away

The first 60 of 106.

Before

  1. 1.541 km ENE of Adak, Alaska · 2798 days ago · 4 km deep · 81 km away
  2. 2.365 km SSW of Adak, Alaska · 2798 days ago · 32 km deep · 34 km away
  3. 2.574 km ESE of Adak, Alaska · 2799 days ago · 35 km deep · 65 km away
  4. 1.979 km WSW of Adak, Alaska · 2799 days ago · 62 km deep · 85 km away
  5. 1.972 km SSW of Adak, Alaska · 2800 days ago · 24 km deep · 37 km away
  6. 2.577 km SSE of Adak, Alaska · 2800 days ago · 10 km deep · 32 km away
  7. 2.361 km SSE of Adak, Alaska · 2802 days ago · 10 km deep · 27 km away
  8. 2.089 km WSW of Adak, Alaska · 2802 days ago · 10 km deep · 83 km away
  9. 2.044 km S of Adak, Alaska · 2802 days ago · 26 km deep · 9 km away
  10. 2.031 km S of Adak, Alaska · 2803 days ago · 52 km deep · 24 km away
  11. 2.326 km SW of Adak, Alaska · 2803 days ago · 67 km deep · 41 km away
  12. 1.737 km WSW of Adak, Alaska · 2804 days ago · 69 km deep · 61 km away
  13. 1.853 km SSE of Adak, Alaska · 2804 days ago · 24 km deep · 23 km away
  14. 1.993 km SW of Adak, Alaska · 2804 days ago · 49 km deep · 82 km away
  15. 3.193 km ESE of Adak, Alaska · 2805 days ago · 35 km deep · 74 km away
  16. 2.20 km SSE of Adak, Alaska · 2805 days ago · 75 km deep · 53 km away
  17. 1.853 km SW of Adak, Alaska · 2805 days ago · 40 km deep · 39 km away
  18. 2.154 km SW of Adak, Alaska · 2805 days ago · 37 km deep · 37 km away
  19. 2.218 km S of Adak, Alaska · 2806 days ago · 65 km deep · 37 km away
  20. 2.274 km SSE of Adak, Alaska · 2806 days ago · 20 km deep · 25 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000jkdc (also filed as ak0191m6m7lz). Read Thu, Oct 1, 2026, 8:11 PM UTC.