Alaska earthquakes

M2.6 earthquake 33 km S of Atka, Alaska

A magnitude 2.6 earthquake struck 33 km S of Atka, Alaska on Fri, Mar 27, 2020, 7:27 PM HADT (04:27 UTC), 84 km (52 mi) below the surface.

A larger quake followed: M4.5 93 km SSE 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
2.6 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2020-03-28 04:27:52 UTC
Depth
83.5 km (51.9 mi), intermediate-depth
Epicenter
51.894° N, 174.219° 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
2.6ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.148 · 6 stations
2.1ML, 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 14.2 km horizontally, 19.0 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
257°, poorly surrounded by stations
Stations used
17

Nearby

Within 100 km, magnitude 1.5 and up: 97 in the 60 days after this one and 30 in the 30 days before it.

After

  1. 4.253 km NNW of Atka, Alaska · 2382 days ago · 203 km deep · 86 km away
  2. 2.122 km N of Atka, Alaska · 2382 days ago · 162 km deep · 56 km away
  3. 2.322 km NNW of Atka, Alaska · 2380 days ago · 98 km deep · 54 km away
  4. 2.687 km SSW of Atka, Alaska · 2379 days ago · 32 km deep · 57 km away
  5. 1.632 km WSW of Atka, Alaska · 2379 days ago · 75 km deep · 35 km away
  6. 3.766 km SE of Atka, Alaska · 2378 days ago · 36 km deep · 49 km away
  7. 3.824 km SE of Atka, Alaska · 2377 days ago · 191 km deep · 20 km away
  8. 1.731 km SW of Atka, Alaska · 2376 days ago · 68 km deep · 24 km away
  9. 3.057 km SSW of Atka, Alaska · 2374 days ago · 69 km deep · 32 km away
  10. 2.872 km SW of Atka, Alaska · 2374 days ago · 26 km deep · 50 km away
  11. 2.832 km ESE of Atka, Alaska · 2374 days ago · 189 km deep · 43 km away
  12. 3.130 km W of Atka, Alaska · 2373 days ago · 218 km deep · 41 km away
  13. 2.973 km SE of Atka, Alaska · 2372 days ago · 35 km deep · 63 km away
  14. 1.942 km WSW of Atka, Alaska · 2372 days ago · 13 km deep · 42 km away
  15. 3.987 km SSE of Atka, Alaska · 2371 days ago · 27 km deep · 60 km away
  16. 1.983 km E of Adak, Alaska · 2371 days ago · 83 km deep · 83 km away
  17. 1.646 km SW of Atka, Alaska · 2371 days ago · 13 km deep · 38 km away
  18. 3.181 km E of Atka, Alaska · 2367 days ago · 106 km deep · 94 km away
  19. 2.891 km S of Atka, Alaska · 2366 days ago · 4 km deep · 59 km away
  20. 1.642 km WSW of Atka, Alaska · 2366 days ago · 14 km deep · 38 km away
  21. 1.817 km NW of Atka, Alaska · 2365 days ago · 9 km deep · 46 km away
  22. 3.092 km SW of Atka, Alaska · 2365 days ago · 35 km deep · 73 km away
  23. 2.965 km ESE of Atka, Alaska · 2365 days ago · 60 km deep · 68 km away
  24. 1.687 km SSW of Atka, Alaska · 2364 days ago · 26 km deep · 57 km away
  25. 3.7106 km SSW of Atka, Alaska · 2364 days ago · 35 km deep · 79 km away
  26. 3.4123 km SSW of Atka, Alaska · 2364 days ago · 15 km deep · 93 km away
  27. 2.013 km N of Atka, Alaska · 2364 days ago · 4 km deep · 47 km away
  28. 2.9129 km SSW of Atka, Alaska · 2363 days ago · 10 km deep · 99 km away
  29. 2.7131 km SSW of Atka, Alaska · 2363 days ago · 24 km deep · 100 km away
  30. 2.334 km NNE of Atka, Alaska · 2362 days ago · 118 km deep · 67 km away
  31. 2.789 km SW of Atka, Alaska · 2362 days ago · 28 km deep · 69 km away
  32. 2.424 km NW of Atka, Alaska · 2362 days ago · 171 km deep · 54 km away
  33. 2.655 km S of Atka, Alaska · 2361 days ago · 35 km deep · 23 km away
  34. 3.0121 km SSW of Atka, Alaska · 2359 days ago · 12 km deep · 92 km away
  35. 2.966 km SW of Atka, Alaska · 2359 days ago · 72 km deep · 52 km away
  36. 2.857 km SW of Atka, Alaska · 2358 days ago · 35 km deep · 38 km away
  37. 3.638 km WSW of Atka, Alaska · 2358 days ago · 82 km deep · 38 km away
  38. 1.937 km E of Atka, Alaska · 2356 days ago · 16 km deep · 49 km away
  39. 2.9108 km ESE of Atka, Alaska · 2355 days ago · 35 km deep · 95 km away
  40. 2.633 km NE of Atka, Alaska · 2355 days ago · 179 km deep · 62 km away
  41. 1.8114 km SW of Atka, Alaska · 2354 days ago · 31 km deep · 88 km away
  42. 3.261 km ESE of Atka, Alaska · 2354 days ago · 67 km deep · 58 km away
  43. 2.769 km SW of Atka, Alaska · 2354 days ago · 56 km deep · 53 km away
  44. 1.866 km SW of Atka, Alaska · 2354 days ago · 47 km deep · 54 km away
  45. 2.260 km W of Atka, Alaska · 2354 days ago · 235 km deep · 74 km away
  46. 1.939 km E of Atka, Alaska · 2353 days ago · 81 km deep · 49 km away
  47. 2.098 km ESE of Adak, Alaska · 2351 days ago · 25 km deep · 86 km away
  48. 2.7104 km ESE of Atka, Alaska · 2349 days ago · 35 km deep · 95 km away
  49. 1.897 km SW of Atka, Alaska · 2349 days ago · 26 km deep · 73 km away
  50. 1.659 km SSE of Atka, Alaska · 2348 days ago · 8 km deep · 28 km away
  51. 2.744 km N of Atka, Alaska · 2348 days ago · 156 km deep · 78 km away
  52. 1.974 km SE of Atka, Alaska · 2348 days ago · 106 km deep · 54 km away
  53. 1.839 km E of Atka, Alaska · 2347 days ago · 5 km deep · 55 km away
  54. 3.777 km E of Atka, Alaska · 2347 days ago · 150 km deep · 87 km away
  55. 1.777 km WSW of Atka, Alaska · 2346 days ago · 84 km deep · 75 km away
  56. 2.242 km ENE of Atka, Alaska · 2346 days ago · 121 km deep · 60 km away
  57. 3.14 km ESE of Atka, Alaska · 2343 days ago · 185 km deep · 33 km away
  58. 1.970 km SW of Atka, Alaska · 2342 days ago · 41 km deep · 54 km away
  59. 3.015 km NW of Atka, Alaska · 2342 days ago · 187 km deep · 45 km away
  60. 1.672 km WSW of Atka, Alaska · 2342 days ago · 70 km deep · 67 km away

The first 60 of 97.

Before

  1. 1.936 km SSE of Atka, Alaska · 2383 days ago · 7 km deep · 18 km away
  2. 2.245 km NNW of Atka, Alaska · 2384 days ago · 190 km deep · 77 km away
  3. 4.8117 km SSW of Atka, Alaska · 2386 days ago · 20 km deep · 90 km away
  4. 2.9109 km SW of Atka, Alaska · 2386 days ago · 14 km deep · 84 km away
  5. 2.976 km SSE of Atka, Alaska · 2386 days ago · 35 km deep · 53 km away
  6. 3.038 km NNW of Atka, Alaska · 2389 days ago · 227 km deep · 70 km away
  7. 1.811 km N of Atka, Alaska · 2389 days ago · 4 km deep · 45 km away
  8. 3.591 km SW of Atka, Alaska · 2390 days ago · 35 km deep · 71 km away
  9. 1.995 km ESE of Adak, Alaska · 2390 days ago · 30 km deep · 83 km away
  10. 1.718 km ESE of Atka, Alaska · 2393 days ago · 73 km deep · 33 km away
  11. 2.845 km W of Atka, Alaska · 2393 days ago · 247 km deep · 55 km away
  12. 3.023 km WSW of Atka, Alaska · 2394 days ago · 184 km deep · 31 km away
  13. 2.074 km E of Adak, Alaska · 2396 days ago · 88 km deep · 94 km away
  14. 1.924 km WNW of Atka, Alaska · 2396 days ago · 76 km deep · 47 km away
  15. 3.367 km E of Atka, Alaska · 2396 days ago · 195 km deep · 72 km away
  16. 2.837 km W of Atka, Alaska · 2399 days ago · 85 km deep · 47 km away
  17. 3.089 km SSW of Atka, Alaska · 2402 days ago · 42 km deep · 58 km away
  18. 1.851 km SW of Atka, Alaska · 2402 days ago · 63 km deep · 35 km away
  19. 1.9126 km SSW of Atka, Alaska · 2403 days ago · 25 km deep · 97 km away
  20. 2.798 km SW of Atka, Alaska · 2403 days ago · 35 km deep · 78 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70008y3b (also filed as ak02041lu6an). Read Mon, Oct 5, 2026, 9:16 AM UTC.