Alaska earthquakes

M2.3 earthquake Alaska Peninsula

A magnitude 2.3 earthquake struck in the Alaska Peninsula on Mon, Mar 16, 2020, 1:33 PM AKDT (21:33 UTC), 68 km (42 mi) below the surface.

A larger quake followed: M3.6 155 km SW of Akhiok, Alaska. This one was a foreshock.

Womens Bay forecastMore in Alaska

Map

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

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The earthquake

Magnitude
2.3 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2020-03-16 21:33:10 UTC
Depth
68.2 km (42.4 mi), shallow
Epicenter
56.550° N, 155.923° 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
2.3ML, local (Richter)Alaska Earthquake CenterPreferred · Preliminary
2.6ML, local (Richter)USGS National Earthquake Information CenterReviewed · ±0.057 · 40 stations

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used
29

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 49 in the 60 days after this one and 19 in the 30 days before it.

After

  1. 1.692 km SE of Ugashik, Alaska · 2391 days ago · 9 km deep · 50 km away
  2. 1.855 km SE of Ugashik, Alaska · 2390 days ago · 88 km deep · 84 km away
  3. 1.767 km WSW of Karluk, Alaska · 2390 days ago · 72 km deep · 99 km away
  4. 1.755 km ESE of Ugashik, Alaska · 2389 days ago · 5 km deep · 89 km away
  5. 2.164 km SSW of Akhiok, Alaska · 2388 days ago · 35 km deep · 76 km away
  6. 1.973 km ENE of Chignik, Alaska · 2387 days ago · 12 km deep · 85 km away
  7. 1.550 km SSE of Ugashik, Alaska · 2386 days ago · 98 km deep · 99 km away
  8. 2.7129 km WSW of Akhiok, Alaska · 2384 days ago · 60 km deep · 14 km away
  9. 2.9129 km E of Chignik, Alaska · 2381 days ago · 82 km deep · 33 km away
  10. 2.090 km ESE of Ugashik, Alaska · 2380 days ago · 72 km deep · 80 km away
  11. 2.6115 km SSE of Ugashik, Alaska · 2380 days ago · 74 km deep · 34 km away
  12. 1.668 km WSW of Akhiok, Alaska · 2379 days ago · 51 km deep · 49 km away
  13. 2.394 km SE of Ugashik, Alaska · 2378 days ago · 66 km deep · 48 km away
  14. 2.059 km WNW of Akhiok, Alaska · 2378 days ago · 58 km deep · 75 km away
  15. 1.874 km WSW of Akhiok, Alaska · 2377 days ago · 20 km deep · 42 km away
  16. 2.185 km SSE of Ugashik, Alaska · 2376 days ago · 82 km deep · 66 km away
  17. 1.774 km WNW of Akhiok, Alaska · 2374 days ago · 65 km deep · 69 km away
  18. 2.560 km WSW of Karluk, Alaska · 2371 days ago · 61 km deep · 90 km away
  19. 1.852 km W of Akhiok, Alaska · 2371 days ago · 57 km deep · 74 km away
  20. 1.593 km SW of Akhiok, Alaska · 2369 days ago · 7 km deep · 53 km away
  21. 1.543 km SSW of Akhiok, Alaska · 2368 days ago · 40 km deep · 86 km away
  22. 1.559 km WNW of Akhiok, Alaska · 2368 days ago · 51 km deep · 81 km away
  23. 2.3114 km SSE of Ugashik, Alaska · 2366 days ago · 76 km deep · 36 km away
  24. 3.6155 km SW of Akhiok, Alaska · 2365 days ago · 48 km deep · 77 km away
  25. 2.2109 km W of Akhiok, Alaska · 2365 days ago · 74 km deep · 31 km away
  26. 1.526 km WSW of Akhiok, Alaska · 2364 days ago · 41 km deep · 89 km away
  27. 2.136 km SW of Akhiok, Alaska · 2364 days ago · 36 km deep · 82 km away
  28. 2.331 km WSW of Akhiok, Alaska · 2364 days ago · 20 km deep · 84 km away
  29. 1.884 km WSW of Karluk, Alaska · 2363 days ago · 72 km deep · 80 km away
  30. 1.568 km ESE of Ugashik, Alaska · 2362 days ago · 84 km deep · 95 km away
  31. 2.031 km WSW of Akhiok, Alaska · 2362 days ago · 9 km deep · 85 km away
  32. 2.192 km W of Akhiok, Alaska · 2359 days ago · 64 km deep · 54 km away
  33. 1.758 km WSW of Karluk, Alaska · 2358 days ago · 60 km deep · 93 km away
  34. 2.571 km NE of Chignik, Alaska · 2356 days ago · 77 km deep · 95 km away
  35. 2.1113 km SW of Akhiok, Alaska · 2355 days ago · 52 km deep · 37 km away
  36. 1.8Kodiak Island region, Alaska · 2354 days ago · 46 km deep · 74 km away
  37. 1.841 km SSE of Ugashik, Alaska · 2352 days ago · 96 km deep · 98 km away
  38. 1.782 km WSW of Karluk, Alaska · 2348 days ago · 80 km deep · 74 km away
  39. 2.260 km WNW of Akhiok, Alaska · 2347 days ago · 63 km deep · 82 km away
  40. 1.648 km SE of Ugashik, Alaska · 2346 days ago · 99 km deep · 93 km away
  41. 2.5124 km E of Chignik, Alaska · 2345 days ago · 70 km deep · 32 km away
  42. 2.0131 km E of Chignik, Alaska · 2344 days ago · 65 km deep · 50 km away
  43. 2.644 km SW of Karluk, Alaska · 2342 days ago · 47 km deep · 100 km away
  44. 1.871 km SW of Akhiok, Alaska · 2342 days ago · 7 km deep · 51 km away
  45. 2.479 km W of Akhiok, Alaska · 2341 days ago · 60 km deep · 56 km away
  46. 1.797 km SSE of Ugashik, Alaska · 2337 days ago · 82 km deep · 60 km away
  47. 2.0124 km E of Chignik, Alaska · 2337 days ago · 78 km deep · 31 km away
  48. 2.2119 km ESE of Chignik, Alaska · 2336 days ago · 3 km deep · 76 km away
  49. 2.862 km SW of Karluk, Alaska · 2335 days ago · 62 km deep · 86 km away

Before

  1. 2.3101 km ENE of Chignik, Alaska · 2396 days ago · 81 km deep · 57 km away
  2. 1.6112 km ENE of Chignik, Alaska · 2397 days ago · 21 km deep · 44 km away
  3. 1.883 km W of Akhiok, Alaska · 2399 days ago · 6 km deep · 57 km away
  4. 1.529 km WNW of Akhiok, Alaska · 2400 days ago · 44 km deep · 96 km away
  5. 2.1Alaska Peninsula · 2401 days ago · 28 km deep · 84 km away
  6. 2.899 km ESE of Ugashik, Alaska · 2402 days ago · 70 km deep · 55 km away
  7. 1.899 km WSW of Karluk, Alaska · 2403 days ago · 66 km deep · 60 km away
  8. 3.129 km W of Akhiok, Alaska · 2405 days ago · 10 km deep · 88 km away
  9. 2.554 km SSE of Ugashik, Alaska · 2408 days ago · 5 km deep · 86 km away
  10. 2.255 km SSE of Ugashik, Alaska · 2409 days ago · 5 km deep · 85 km away
  11. 1.985 km ESE of Ugashik, Alaska · 2409 days ago · 73 km deep · 71 km away
  12. 1.957 km SSE of Ugashik, Alaska · 2411 days ago · 7 km deep · 85 km away
  13. 2.1104 km ENE of Chignik, Alaska · 2412 days ago · 71 km deep · 53 km away
  14. 1.851 km SSE of Ugashik, Alaska · 2413 days ago · 14 km deep · 90 km away
  15. 2.057 km SSE of Ugashik, Alaska · 2414 days ago · 2 km deep · 84 km away
  16. 2.2102 km SSE of Ugashik, Alaska · 2418 days ago · 63 km deep · 40 km away
  17. 1.948 km WSW of Akhiok, Alaska · 2420 days ago · 50 km deep · 67 km away
  18. 2.752 km WSW of Akhiok, Alaska · 2421 days ago · 51 km deep · 64 km away
  19. 2.586 km SSE of Ugashik, Alaska · 2423 days ago · 85 km deep · 57 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0203i1jkpc (also filed as us60008gtl). Read Sun, Oct 4, 2026, 11:41 PM UTC.