Alaska earthquakes

M1.9 earthquake 40 km S of Perryville, Alaska

A magnitude 1.9 earthquake struck 40 km S of Perryville, Alaska on Tue, Apr 21, 2020, 9:15 PM AKDT (05:15 UTC), 76 km (47 mi) below the surface.

A larger quake followed: M4.0 17 km W of Chignik Lake, Alaska. This one was a foreshock.

Sand Point 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
1.9 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2020-04-22 05:15:43 UTC
Depth
75.5 km (46.9 mi), intermediate-depth
Epicenter
55.544° N, 159.188° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

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
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 43 in the 60 days after this one and 18 in the 30 days before it.

After

  1. 1.869 km ESE of Sand Point, Alaska · 2350 days ago · 20 km deep · 50 km away
  2. 1.721 km S of Ivanof Bay, Alaska · 2350 days ago · 76 km deep · 24 km away
  3. 1.650 km E of Sand Point, Alaska · 2348 days ago · 6 km deep · 46 km away
  4. 1.963 km SE of Sand Point, Alaska · 2346 days ago · 12 km deep · 69 km away
  5. 1.719 km SSW of Ivanof Bay, Alaska · 2345 days ago · 5 km deep · 35 km away
  6. 1.716 km S of Perryville, Alaska · 2345 days ago · 72 km deep · 24 km away
  7. 2.951 km E of Sand Point, Alaska · 2345 days ago · 63 km deep · 37 km away
  8. 1.959 km S of Perryville, Alaska · 2343 days ago · 36 km deep · 18 km away
  9. 2.670 km SSE of Chignik, Alaska · 2343 days ago · 31 km deep · 86 km away
  10. 1.772 km SE of Sand Point, Alaska · 2343 days ago · 11 km deep · 72 km away
  11. 2.339 km SE of Perryville, Alaska · 2341 days ago · 61 km deep · 26 km away
  12. 1.919 km WSW of Chignik Lake, Alaska · 2341 days ago · 5 km deep · 74 km away
  13. 2.075 km S of Ivanof Bay, Alaska · 2340 days ago · 42 km deep · 36 km away
  14. 1.616 km ESE of Sand Point, Alaska · 2338 days ago · 7 km deep · 73 km away
  15. 2.043 km SSE of Perryville, Alaska · 2333 days ago · 41 km deep · 23 km away
  16. 1.946 km WSW of Ivanof Bay, Alaska · 2332 days ago · 86 km deep · 68 km away
  17. 1.719 km W of Ivanof Bay, Alaska · 2332 days ago · 9 km deep · 56 km away
  18. 2.699 km SSE of Perryville, Alaska · 2332 days ago · 25 km deep · 67 km away
  19. 1.955 km SE of Sand Point, Alaska · 2331 days ago · 28 km deep · 84 km away
  20. 1.721 km S of Sand Point, Alaska · 2330 days ago · 55 km deep · 94 km away
  21. 1.950 km SE of Sand Point, Alaska · 2330 days ago · 25 km deep · 69 km away
  22. 1.929 km SW of Ivanof Bay, Alaska · 2328 days ago · 81 km deep · 43 km away
  23. 4.017 km W of Chignik Lake, Alaska · 2327 days ago · 10 km deep · 83 km away · felt by 1
  24. 1.516 km W of Chignik Lake, Alaska · 2327 days ago · 16 km deep · 79 km away
  25. 1.613 km WNW of Chignik Lake, Alaska · 2327 days ago · 10 km deep · 84 km away
  26. 1.753 km SSE of Sand Point, Alaska · 2327 days ago · 26 km deep · 92 km away
  27. 2.024 km NNE of Ivanof Bay, Alaska · 2321 days ago · 95 km deep · 65 km away
  28. 2.051 km WSW of Ivanof Bay, Alaska · 2320 days ago · 91 km deep · 74 km away
  29. 2.138 km SE of Sand Point, Alaska · 2320 days ago · 7 km deep · 75 km away
  30. 1.510 km W of Ivanof Bay, Alaska · 2318 days ago · 83 km deep · 48 km away
  31. 2.033 km SSE of Chignik, Alaska · 2317 days ago · 88 km deep · 81 km away
  32. 3.417 km WNW of Chignik Lake, Alaska · 2317 days ago · 13 km deep · 84 km away
  33. 2.216 km W of Chignik Lake, Alaska · 2317 days ago · 5 km deep · 81 km away
  34. 2.836 km SSE of Perryville, Alaska · 2316 days ago · 52 km deep · 14 km away
  35. 2.39 km NNW of Chignik Lagoon, Alaska · 2315 days ago · 88 km deep · 99 km away
  36. 1.951 km SSE of Perryville, Alaska · 2312 days ago · 20 km deep · 31 km away
  37. 3.230 km SSE of Sand Point, Alaska · 2310 days ago · 49 km deep · 91 km away
  38. 1.815 km SE of Ivanof Bay, Alaska · 2308 days ago · 68 km deep · 29 km away
  39. 2.138 km WSW of Ivanof Bay, Alaska · 2304 days ago · 84 km deep · 56 km away
  40. 3.671 km ESE of Sand Point, Alaska · 2303 days ago · 35 km deep · 47 km away
  41. 1.754 km SE of Sand Point, Alaska · 2302 days ago · 21 km deep · 85 km away
  42. 2.025 km WSW of Chignik Lake, Alaska · 2297 days ago · 85 km deep · 68 km away
  43. 2.849 km S of Chignik, Alaska · 2295 days ago · 48 km deep · 66 km away

Before

  1. 2.259 km ESE of Sand Point, Alaska · 2359 days ago · 10 km deep · 60 km away
  2. 3.778 km SE of Perryville, Alaska · 2361 days ago · 17 km deep · 58 km away · felt by 2
  3. 2.33 km NE of Chignik, Alaska · 2362 days ago · 73 km deep · 100 km away
  4. 2.979 km SSE of Perryville, Alaska · 2362 days ago · 5 km deep · 48 km away
  5. 2.05 km NW of Chignik Lagoon, Alaska · 2362 days ago · 86 km deep · 97 km away
  6. 1.926 km ESE of Perryville, Alaska · 2366 days ago · 57 km deep · 44 km away
  7. 1.859 km ESE of Sand Point, Alaska · 2366 days ago · 13 km deep · 55 km away
  8. 2.267 km E of Sand Point, Alaska · 2368 days ago · 16 km deep · 39 km away
  9. 2.975 km ESE of Sand Point, Alaska · 2372 days ago · 26 km deep · 65 km away
  10. 2.0Alaska Peninsula · 2373 days ago · 17 km deep · 31 km away
  11. 1.839 km ESE of Sand Point, Alaska · 2373 days ago · 7 km deep · 65 km away
  12. 3.426 km S of Sand Point, Alaska · 2376 days ago · 50 km deep · 95 km away
  13. 2.08 km NW of Chignik Lake, Alaska · 2378 days ago · 18 km deep · 87 km away
  14. 2.016 km W of Ivanof Bay, Alaska · 2381 days ago · 2 km deep · 55 km away
  15. 1.647 km SSW of Ivanof Bay, Alaska · 2381 days ago · 52 km deep · 33 km away
  16. 1.625 km SSE of Ivanof Bay, Alaska · 2382 days ago · 13 km deep · 18 km away
  17. 1.539 km SW of Ivanof Bay, Alaska · 2382 days ago · 73 km deep · 53 km away
  18. 1.542 km ESE of Nelson Lagoon, Alaska · 2383 days ago · 26 km deep · 94 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak02056ysovw. Read Thu, Oct 1, 2026, 4:34 PM UTC.