Alaska earthquakes

M3.4 earthquake 66 km SE of Atka, Alaska

A magnitude 3.4 earthquake struck 66 km SE of Atka, Alaska on Fri, Oct 25, 2019, 1:20 PM HADT (22:20 UTC), 47 km (29 mi) below the surface.

A larger quake followed: M4.4 81 km SE of Atka, Alaska. This one was a foreshock.

More in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
3.4 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2019-10-25 22:20:32 UTC
Depth
46.9 km (29.2 mi), shallow
Epicenter
51.700° N, 173.651° 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
3.4ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed
3.4ML, 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 7.6 km horizontally, 10.8 km in depth
Depth from
From location
Station coverage gap
186°, poorly surrounded by stations
Stations used
33

Nearby

Within 100 km, magnitude 1.5 and up: 72 in the 60 days after this one and 25 in the 30 days before it.

After

  1. 3.959 km E of Atka, Alaska · 2534 days ago · 83 km deep · 66 km away
  2. 2.069 km S of Atka, Alaska · 2531 days ago · 27 km deep · 31 km away
  3. 1.8Andreanof Islands, Aleutian Islands, Alaska · 2531 days ago · 26 km deep · 60 km away
  4. 1.738 km WSW of Atka, Alaska · 2530 days ago · 69 km deep · 82 km away
  5. 2.070 km SSW of Atka, Alaska · 2528 days ago · 26 km deep · 55 km away
  6. 2.3155 km S of Atka, Alaska · 2527 days ago · 13 km deep · 99 km away
  7. 2.228 km N of Atka, AK · 2526 days ago · 127 km deep · 89 km away
  8. 3.929 km E of Atka, Alaska · 2525 days ago · 9 km deep · 56 km away
  9. 2.3110 km SE of Atka, Alaska · 2524 days ago · 23 km deep · 44 km away
  10. 1.968 km SW of Atka, Alaska · 2524 days ago · 20 km deep · 86 km away
  11. 1.628 km NE of Atka, Alaska · 2524 days ago · 12 km deep · 75 km away
  12. 2.172 km ESE of Atka, Alaska · 2523 days ago · 63 km deep · 42 km away
  13. 2.384 km SW of Atka, Alaska · 2522 days ago · 29 km deep · 95 km away
  14. 1.617 km ESE of Atka, Alaska · 2521 days ago · 3 km deep · 55 km away
  15. 2.5153 km SSE of Atka, Alaska · 2520 days ago · 10 km deep · 89 km away
  16. 1.6Andreanof Islands, Aleutian Islands, Alaska · 2519 days ago · 52 km deep · 52 km away
  17. 1.753 km SSW of Atka, Alaska · 2519 days ago · 34 km deep · 54 km away
  18. 2.170 km SSE of Atka, Alaska · 2518 days ago · 28 km deep · 15 km away
  19. 1.864 km SSE of Atka, Alaska · 2518 days ago · 19 km deep · 2 km away
  20. 2.074 km SW of Atka, Alaska · 2517 days ago · 39 km deep · 92 km away
  21. 1.919 km SSW of Atka, Alaska · 2516 days ago · 11 km deep · 62 km away
  22. 2.3103 km ESE of Atka, Alaska · 2515 days ago · 14 km deep · 55 km away
  23. 1.833 km ENE of Atka, Alaska · 2514 days ago · 20 km deep · 72 km away
  24. 1.855 km SW of Atka, Alaska · 2513 days ago · 36 km deep · 70 km away
  25. 1.972 km SSW of Atka, Alaska · 2513 days ago · 19 km deep · 64 km away
  26. 4.081 km S of Atka, Alaska · 2513 days ago · 35 km deep · 38 km away
  27. 2.067 km SE of Atka, Alaska · 2513 days ago · 32 km deep · 8 km away
  28. 3.681 km SW of Atka, Alaska · 2512 days ago · 34 km deep · 87 km away
  29. 1.777 km SW of Atka, Alaska · 2512 days ago · 26 km deep · 90 km away
  30. 1.66 km SSW of Atka, Alaska · 2512 days ago · 10 km deep · 63 km away
  31. 1.977 km S of Atka, Alaska · 2512 days ago · 4 km deep · 52 km away
  32. 3.716 km NE of Atka, Alaska · 2511 days ago · 195 km deep · 70 km away
  33. 2.372 km ESE of Atka, Alaska · 2510 days ago · 61 km deep · 47 km away
  34. 1.862 km WSW of Atka, Alaska · 2510 days ago · 57 km deep · 94 km away
  35. 4.381 km SSE of Atka, Alaska · 2509 days ago · 39 km deep · 15 km away
  36. 2.889 km ENE of Atka, Alaska · 2507 days ago · 136 km deep · 89 km away
  37. 1.943 km WSW of Atka, Alaska · 2506 days ago · 13 km deep · 84 km away
  38. 2.969 km SSE of Atka, Alaska · 2506 days ago · 29 km deep · 20 km away
  39. 2.5Andreanof Islands, Aleutian Islands, Alaska · 2506 days ago · 10 km deep · 76 km away
  40. 1.734 km SW of Atka, Alaska · 2505 days ago · 68 km deep · 65 km away
  41. 3.674 km SSW of Atka, Alaska · 2504 days ago · 10 km deep · 70 km away
  42. 2.348 km NNE of Atka, Alaska · 2501 days ago · 128 km deep · 97 km away
  43. 2.226 km SE of Atka, Alaska · 2501 days ago · 81 km deep · 42 km away
  44. 2.883 km SSW of Atka, Alaska · 2500 days ago · 35 km deep · 86 km away
  45. 2.638 km SSW of Atka, Alaska · 2500 days ago · 35 km deep · 54 km away
  46. 2.431 km ESE of Atka, Alaska · 2499 days ago · 9 km deep · 46 km away
  47. 1.780 km SW of Atka, Alaska · 2498 days ago · 26 km deep · 94 km away
  48. 2.166 km SW of Atka, Alaska · 2498 days ago · 38 km deep · 78 km away
  49. 2.338 km SW of Atka, Alaska · 2498 days ago · 76 km deep · 71 km away
  50. 3.251 km SSW of Atka, Alaska · 2496 days ago · 60 km deep · 53 km away
  51. 2.252 km WSW of Atka, Alaska · 2496 days ago · 64 km deep · 89 km away
  52. 2.790 km ENE of Atka, Alaska · 2494 days ago · 14 km deep · 97 km away
  53. 2.476 km SW of Atka, Alaska · 2494 days ago · 21 km deep · 90 km away
  54. 2.570 km ENE of Atka, Alaska · 2493 days ago · 19 km deep · 83 km away
  55. 2.191 km S of Atka, Alaska · 2492 days ago · 13 km deep · 60 km away
  56. 2.779 km SW of Atka, Alaska · 2492 days ago · 27 km deep · 88 km away
  57. 2.531 km SSW of Atka, Alaska · 2491 days ago · 61 km deep · 59 km away
  58. 2.818 km SSE of Atka, Alaska · 2488 days ago · 211 km deep · 49 km away
  59. 3.593 km S of Atka, Alaska · 2488 days ago · 35 km deep · 55 km away
  60. 2.261 km ESE of Atka, Alaska · 2488 days ago · 74 km deep · 45 km away

The first 60 of 72.

Before

  1. 2.260 km ESE of Atka, Alaska · 2539 days ago · 74 km deep · 42 km away
  2. 2.456 km SW of Atka, Alaska · 2539 days ago · 48 km deep · 71 km away
  3. 2.270 km SE of Atka, Alaska · 2540 days ago · 46 km deep · 21 km away
  4. 3.375 km E of Atka, Alaska · 2540 days ago · 10 km deep · 64 km away
  5. 2.373 km ENE of Atka, Alaska · 2541 days ago · 26 km deep · 87 km away
  6. 2.386 km SW of Atka, Alaska · 2543 days ago · 26 km deep · 99 km away
  7. 2.435 km SSW of Atka, Alaska · 2547 days ago · 194 km deep · 56 km away
  8. 1.628 km SW of Atka, Alaska · 2547 days ago · 63 km deep · 64 km away
  9. 1.843 km WSW of Atka, Alaska · 2547 days ago · 13 km deep · 92 km away
  10. 1.974 km SSE of Atka, Alaska · 2547 days ago · 18 km deep · 20 km away
  11. 2.547 km SSE of Atka, Alaska · 2551 days ago · 35 km deep · 26 km away
  12. 2.5164 km SSE of Atka, Alaska · 2551 days ago · 10 km deep · 100 km away
  13. 1.816 km SW of Atka, Alaska · 2552 days ago · 17 km deep · 63 km away
  14. 1.784 km SW of Atka, Alaska · 2552 days ago · 52 km deep · 92 km away
  15. 2.2117 km ESE of Atka, Alaska · 2553 days ago · 8 km deep · 66 km away
  16. 1.529 km SSW of Atka, Alaska · 2555 days ago · 75 km deep · 56 km away
  17. 1.647 km SSW of Atka, Alaska · 2555 days ago · 50 km deep · 59 km away
  18. 2.8107 km ESE of Atka, Alaska · 2555 days ago · 19 km deep · 62 km away
  19. 1.843 km S of Atka, Alaska · 2557 days ago · 25 km deep · 45 km away
  20. 1.7Andreanof Islands, Aleutian Islands, Alaska · 2557 days ago · 23 km deep · 44 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70006230 (also filed as ak019dp7dbpd). Read Sat, Oct 3, 2026, 7:51 AM UTC.