Alaska earthquakes

M2.8 earthquake 79 km SE of Atka, Alaska

A magnitude 2.8 earthquake struck 79 km SE of Atka, Alaska on Sun, Aug 4, 2019, 9:12 AM HADT (18:12 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M4.2 70 km ENE 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
2.8 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2019-08-04 18:12:20 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
51.757° N, 173.286° 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
2.8ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed
2.8ML, 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 3.6 km horizontally, 2.0 km in depth
Depth from
Operator assigned
Station coverage gap
204°, poorly surrounded by stations
Stations used
21

Nearby

Within 100 km, magnitude 1.5 and up: 53 in the 60 days after this one and 27 in the 30 days before it.

After

  1. 2.054 km ESE of Atka, Alaska · 2613 days ago · 55 km deep · 26 km away
  2. 2.116 km SSE of Atka, Alaska · 2613 days ago · 131 km deep · 66 km away
  3. 2.37 km NNW of Atka, Alaska · 2612 days ago · 219 km deep · 86 km away
  4. 2.827 km SSW of Atka, Alaska · 2611 days ago · 76 km deep · 75 km away
  5. 2.015 km SSW of Atka, Alaska · 2610 days ago · 66 km deep · 76 km away
  6. 3.786 km ESE of Atka, Alaska · 2608 days ago · 27 km deep · 19 km away
  7. 2.066 km ESE of Atka, Alaska · 2608 days ago · 56 km deep · 20 km away
  8. 2.6103 km SSW of Atka, Alaska · 2607 days ago · 10 km deep · 99 km away
  9. 1.880 km ESE of Atka, Alaska · 2607 days ago · 34 km deep · 10 km away
  10. 2.521 km ENE of Atka, Alaska · 2607 days ago · 148 km deep · 75 km away
  11. 1.897 km S of Atka, Alaska · 2606 days ago · 66 km deep · 85 km away
  12. 2.350 km SSW of Atka, Alaska · 2604 days ago · 5 km deep · 80 km away
  13. 2.7143 km E of Atka, Alaska · 2603 days ago · 47 km deep · 94 km away
  14. 3.264 km NE of Atka, Alaska · 2601 days ago · 21 km deep · 86 km away
  15. 2.534 km ESE of Atka, Alaska · 2597 days ago · 12 km deep · 47 km away
  16. 4.270 km ENE of Atka, Alaska · 2597 days ago · 14 km deep · 87 km away
  17. 3.388 km S of Atka, Alaska · 2595 days ago · 23 km deep · 70 km away
  18. 2.055 km NE of Atka, Alaska · 2594 days ago · 25 km deep · 99 km away
  19. 1.659 km NE of Atka, Alaska · 2594 days ago · 65 km deep · 91 km away
  20. 1.825 km NNE of Atka, Alaska · 2594 days ago · 139 km deep · 92 km away
  21. 1.661 km E of Atka, Alaska · 2594 days ago · 20 km deep · 42 km away
  22. 2.230 km N of Atka, Alaska · 2593 days ago · 213 km deep · 100 km away
  23. 2.465 km E of Atka, Alaska · 2592 days ago · 17 km deep · 51 km away
  24. 2.675 km ESE of Atka, Alaska · 2591 days ago · 11 km deep · 34 km away
  25. 2.629 km WSW of Atka, Alaska · 2591 days ago · 10 km deep · 95 km away
  26. 1.859 km SW of Atka, Alaska · 2591 days ago · 15 km deep · 97 km away
  27. 2.683 km ESE of Atka, Alaska · 2591 days ago · 35 km deep · 15 km away
  28. 2.528 km N of Atka, Alaska · 2590 days ago · 218 km deep · 99 km away
  29. 1.927 km W of Atka, Alaska · 2589 days ago · 6 km deep · 100 km away
  30. 2.1125 km S of Atka, Alaska · 2585 days ago · 5 km deep · 92 km away
  31. 2.269 km SSE of Atka, Alaska · 2584 days ago · 51 km deep · 45 km away
  32. 2.036 km SSW of Atka, Alaska · 2583 days ago · 7 km deep · 78 km away
  33. 2.220 km SW of Atka, Alaska · 2582 days ago · 39 km deep · 86 km away
  34. 2.251 km SW of Atka, Alaska · 2581 days ago · 4 km deep · 96 km away
  35. 2.028 km SSW of Atka, Alaska · 2580 days ago · 55 km deep · 80 km away
  36. 4.124 km E of Atka, Alaska · 2578 days ago · 171 km deep · 60 km away
  37. 3.04 km SSW of Atka, Alaska · 2575 days ago · 81 km deep · 79 km away
  38. 2.1Andreanof Islands, Aleutian Islands, Alaska · 2575 days ago · 7 km deep · 98 km away
  39. 2.888 km S of Atka, Alaska · 2574 days ago · 30 km deep · 70 km away
  40. 2.184 km S of Atka, Alaska · 2574 days ago · 13 km deep · 81 km away
  41. 2.475 km E of Atka, Alaska · 2573 days ago · 7 km deep · 49 km away
  42. 2.296 km SSE of Atka, Alaska · 2570 days ago · 48 km deep · 48 km away
  43. 1.825 km ESE of Atka, Alaska · 2566 days ago · 31 km deep · 54 km away
  44. 2.1134 km E of Atka, Alaska · 2564 days ago · 52 km deep · 89 km away
  45. 1.868 km SSE of Atka, Alaska · 2564 days ago · 46 km deep · 33 km away
  46. 1.836 km SW of Atka, Alaska · 2560 days ago · 13 km deep · 88 km away
  47. 1.874 km S of Atka, Alaska · 2558 days ago · 6 km deep · 63 km away
  48. 1.972 km SSE of Atka, Alaska · 2557 days ago · 5 km deep · 39 km away
  49. 1.951 km SE of Atka, Alaska · 2556 days ago · 44 km deep · 33 km away
  50. 2.2172 km SE of Atka, Alaska · 2556 days ago · 9 km deep · 99 km away
  51. 1.582 km SSW of Atka, Alaska · 2556 days ago · 10 km deep · 97 km away
  52. 1.7Andreanof Islands, Aleutian Islands, Alaska · 2555 days ago · 23 km deep · 68 km away
  53. 1.843 km S of Atka, Alaska · 2555 days ago · 25 km deep · 69 km away

Before

  1. 2.024 km SW of Atka, Alaska · 2617 days ago · 63 km deep · 86 km away
  2. 3.746 km S of Atka, Alaska · 2617 days ago · 46 km deep · 66 km away
  3. 2.174 km SE of Atka, Alaska · 2623 days ago · 28 km deep · 6 km away
  4. 2.17 km SSW of Atka, Alaska · 2624 days ago · 141 km deep · 77 km away
  5. 2.779 km ESE of Atka, Alaska · 2626 days ago · 35 km deep · 8 km away
  6. 3.0118 km SE of Atka, Alaska · 2627 days ago · 35 km deep · 41 km away
  7. 1.931 km SW of Atka, Alaska · 2627 days ago · 88 km deep · 86 km away
  8. 2.177 km ESE of Atka, Alaska · 2630 days ago · 83 km deep · 22 km away
  9. 2.032 km SW of Atka, Alaska · 2630 days ago · 78 km deep · 89 km away
  10. 3.732 km NNE of Atka, Alaska · 2630 days ago · 163 km deep · 88 km away
  11. 4.011 km WSW of Atka, Alaska · 2630 days ago · 178 km deep · 85 km away
  12. 2.258 km SE of Atka, Alaska · 2631 days ago · 15 km deep · 25 km away
  13. 2.467 km S of Atka, Alaska · 2631 days ago · 10 km deep · 68 km away
  14. 1.9129 km E of Atka, Alaska · 2632 days ago · 49 km deep · 93 km away
  15. 1.86 km WNW of Atka, Alaska · 2633 days ago · 188 km deep · 85 km away
  16. 1.644 km S of Atka, Alaska · 2636 days ago · 20 km deep · 58 km away
  17. 2.147 km NNE of Atka, Alaska · 2636 days ago · 162 km deep · 98 km away
  18. 1.842 km S of Atka, Alaska · 2637 days ago · 47 km deep · 65 km away
  19. 2.470 km SSW of Atka, Alaska · 2637 days ago · 35 km deep · 91 km away
  20. 1.747 km SW of Atka, Alaska · 2639 days ago · 64 km deep · 99 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us600050li (also filed as ak0199xivfc5). Read Thu, Oct 1, 2026, 8:13 PM UTC.