Alaska earthquakes

M3.6 earthquake 75 km SE of Chignik, Alaska

A magnitude 3.6 earthquake struck 75 km SE of Chignik, Alaska on Tue, Feb 9, 2021, 11:00 PM AKST (08:00 UTC), 34 km (21 mi) below the surface.

A larger quake followed: M3.7 114 km SE of Perryville, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
3.6 (ml), minor
Local time
UTC
2021-02-10 08:00:36 UTC
Depth
34.4 km (21.4 mi), shallow
Epicenter
55.895° N, 157.413° W
Region
Alaska
Strongest shaking
II, weak shaking
Tsunami flag
No
Status
Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated
II, weak shaking
Peak ground acceleration
134.0% of gravity
Peak ground velocity
0.1 cm/s
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

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
138

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 36 in the 60 days after this one and 28 in the 30 days before it.

After

  1. 2.847 km SSE of Chignik, Alaska · 2052 days ago · 25 km deep · 38 km away
  2. 2.849 km SE of Perryville, Alaska · 2051 days ago · 28 km deep · 84 km away
  3. 2.427 km E of Chignik, Alaska · 2049 days ago · 63 km deep · 57 km away
  4. 2.672 km ESE of Chignik, Alaska · 2049 days ago · 43 km deep · 5 km away
  5. 2.570 km SE of Perryville, Alaska · 2047 days ago · 26 km deep · 81 km away
  6. 2.38 km WNW of Chignik Lagoon, Alaska · 2047 days ago · 111 km deep · 91 km away
  7. 3.650 km SSE of Chignik, Alaska · 2044 days ago · 48 km deep · 51 km away
  8. 2.554 km S of Chignik, Alaska · 2043 days ago · 41 km deep · 54 km away
  9. 2.558 km E of Chignik, Alaska · 2043 days ago · 60 km deep · 41 km away
  10. 2.3112 km SSE of Ugashik, Alaska · 2041 days ago · 75 km deep · 95 km away
  11. 3.1116 km ENE of Chignik, Alaska · 2039 days ago · 73 km deep · 87 km away
  12. 2.223 km ENE of Chignik, Alaska · 2037 days ago · 68 km deep · 65 km away
  13. 2.222 km S of Chignik Lake, Alaska · 2036 days ago · 65 km deep · 84 km away
  14. 3.1101 km SE of Perryville, Alaska · 2036 days ago · 21 km deep · 95 km away
  15. 2.757 km ENE of Chignik, Alaska · 2035 days ago · 66 km deep · 66 km away
  16. 3.7114 km SE of Perryville, Alaska · 2034 days ago · 11 km deep · 93 km away
  17. 2.5102 km SE of Perryville, Alaska · 2034 days ago · 26 km deep · 88 km away
  18. 2.445 km SE of Port Heiden, Alaska · 2034 days ago · 94 km deep · 97 km away
  19. 2.237 km ENE of Chignik, Alaska · 2032 days ago · 65 km deep · 64 km away
  20. 2.399 km SE of Perryville, Alaska · 2025 days ago · 23 km deep · 96 km away
  21. 2.494 km SE of Perryville, Alaska · 2020 days ago · 26 km deep · 86 km away
  22. 2.5Alaska Peninsula · 2020 days ago · 63 km deep · 100 km away
  23. 2.446 km E of Chignik, Alaska · 2020 days ago · 45 km deep · 46 km away
  24. 2.328 km SE of Chignik, Alaska · 2019 days ago · 78 km deep · 48 km away
  25. 3.093 km SE of Perryville, Alaska · 2017 days ago · 7 km deep · 91 km away
  26. 2.823 km ESE of Chignik, Alaska · 2011 days ago · 63 km deep · 52 km away
  27. 3.790 km SE of Perryville, Alaska · 2008 days ago · 9 km deep · 66 km away
  28. 3.035 km S of Chignik, Alaska · 2008 days ago · 57 km deep · 57 km away
  29. 2.630 km NE of Chignik, Alaska · 2007 days ago · 77 km deep · 82 km away
  30. 2.6118 km SE of Perryville, Alaska · 2006 days ago · 52 km deep · 97 km away
  31. 2.534 km ENE of Chignik, Alaska · 2005 days ago · 65 km deep · 64 km away
  32. 2.9141 km SE of Perryville, Alaska · 2000 days ago · 36 km deep · 84 km away
  33. 2.4106 km E of Chignik, Alaska · 1997 days ago · 37 km deep · 54 km away
  34. 2.378 km E of Chignik, Alaska · 1997 days ago · 23 km deep · 35 km away
  35. 2.127 km E of Chignik, Alaska · 1997 days ago · 62 km deep · 55 km away
  36. 2.670 km SSE of Chignik, Alaska · 1997 days ago · 36 km deep · 35 km away

Before

  1. 1.953 km ENE of Chignik, Alaska · 2059 days ago · 57 km deep · 61 km away
  2. 2.868 km SE of Perryville, Alaska · 2059 days ago · 26 km deep · 70 km away
  3. 2.4137 km E of Chignik, Alaska · 2059 days ago · 3 km deep · 83 km away
  4. 3.287 km ESE of Chignik, Alaska · 2060 days ago · 9 km deep · 21 km away
  5. 2.441 km SSE of Chignik, Alaska · 2062 days ago · 75 km deep · 41 km away
  6. 2.781 km E of Chignik, Alaska · 2063 days ago · 31 km deep · 56 km away
  7. 2.4147 km SE of Perryville, Alaska · 2063 days ago · 24 km deep · 99 km away
  8. 2.5Alaska Peninsula · 2063 days ago · 7 km deep · 72 km away
  9. 2.376 km SE of Perryville, Alaska · 2064 days ago · 26 km deep · 78 km away
  10. 2.0134 km E of Chignik, Alaska · 2066 days ago · 20 km deep · 91 km away
  11. 3.2Alaska Peninsula · 2066 days ago · 33 km deep · 75 km away
  12. 2.877 km SE of Chignik, Alaska · 2069 days ago · 9 km deep · 3 km away
  13. 3.443 km SSE of Perryville, Alaska · 2070 days ago · 15 km deep · 98 km away
  14. 2.8Alaska Peninsula · 2071 days ago · 45 km deep · 49 km away
  15. 2.473 km SE of Perryville, Alaska · 2072 days ago · 34 km deep · 66 km away
  16. 2.499 km ESE of Chignik, Alaska · 2073 days ago · 46 km deep · 41 km away
  17. 2.033 km E of Chignik, Alaska · 2073 days ago · 57 km deep · 53 km away
  18. 2.561 km SE of Perryville, Alaska · 2076 days ago · 2 km deep · 81 km away
  19. 2.680 km SSE of Perryville, Alaska · 2077 days ago · 15 km deep · 97 km away
  20. 3.1138 km WSW of Akhiok, Alaska · 2078 days ago · 53 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0211vxsruj (also filed as us6000dg51). Read Mon, Sep 28, 2026, 8:04 PM UTC.