Alaska earthquakes

M2.1 earthquake 113 km E of Chignik, Alaska

A magnitude 2.1 earthquake struck 113 km E of Chignik, Alaska on Fri, Sep 18, 2020, 9:45 PM AKDT (05:45 UTC), 40 km (25 mi) below the surface.

A larger quake followed: M3.5 Alaska Peninsula. 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
2.1 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2020-09-19 05:45:31 UTC
Depth
40.3 km (25.0 mi), shallow
Epicenter
56.302° N, 156.577° 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
27

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 2.259 km SSE of Ugashik, Alaska · 2205 days ago · 88 km deep · 84 km away
  2. 1.866 km WSW of Akhiok, Alaska · 2199 days ago · 7 km deep · 97 km away
  3. 3.5Alaska Peninsula · 2192 days ago · 63 km deep · 79 km away
  4. 1.891 km SE of Ugashik, Alaska · 2191 days ago · 68 km deep · 63 km away
  5. 2.4130 km SW of Akhiok, Alaska · 2190 days ago · 70 km deep · 48 km away
  6. 2.195 km WSW of Akhiok, Alaska · 2189 days ago · 60 km deep · 69 km away
  7. 2.3104 km SE of Ugashik, Alaska · 2185 days ago · 71 km deep · 59 km away
  8. 1.877 km WSW of Akhiok, Alaska · 2183 days ago · 24 km deep · 88 km away
  9. 1.988 km SE of Ugashik, Alaska · 2182 days ago · 71 km deep · 76 km away
  10. 2.259 km ENE of Chignik, Alaska · 2181 days ago · 89 km deep · 67 km away
  11. 2.2103 km E of Chignik, Alaska · 2178 days ago · 47 km deep · 14 km away
  12. 2.1121 km ENE of Chignik, Alaska · 2177 days ago · 65 km deep · 27 km away
  13. 3.2111 km E of Chignik, Alaska · 2172 days ago · 44 km deep · 2 km away
  14. 2.180 km SE of Ugashik, Alaska · 2172 days ago · 61 km deep · 76 km away
  15. 1.892 km SSE of Ugashik, Alaska · 2167 days ago · 11 km deep · 56 km away
  16. 1.666 km SSE of Ugashik, Alaska · 2166 days ago · 81 km deep · 77 km away
  17. 2.9126 km SW of Akhiok, AK · 2165 days ago · 67 km deep · 58 km away
  18. 3.1120 km SSE of Ugashik, AK · 2165 days ago · 60 km deep · 38 km away
  19. 2.998 km W of Akhiok, AK · 2164 days ago · 53 km deep · 91 km away
  20. 2.186 km ENE of Chignik, Alaska · 2164 days ago · 61 km deep · 55 km away
  21. 2.4117 km ESE of Chignik, Alaska · 2160 days ago · 34 km deep · 43 km away
  22. 1.5109 km SE of Ugashik, Alaska · 2158 days ago · 68 km deep · 75 km away
  23. 1.798 km W of Akhiok, Alaska · 2148 days ago · 8 km deep · 74 km away

Before

  1. 1.777 km ENE of Chignik, Alaska · 2212 days ago · 13 km deep · 56 km away
  2. 2.3135 km E of Chignik, Alaska · 2212 days ago · 67 km deep · 23 km away
  3. 1.653 km NE of Chignik, Alaska · 2212 days ago · 85 km deep · 88 km away
  4. 1.799 km ESE of Chignik, Alaska · 2213 days ago · 21 km deep · 34 km away
  5. 1.530 km ESE of Chignik, Alaska · 2213 days ago · 14 km deep · 84 km away
  6. 3.784 km SSE of Ugashik, Alaska · 2221 days ago · 69 km deep · 59 km away · felt by 3
  7. 2.495 km ESE of Chignik, Alaska · 2221 days ago · 9 km deep · 40 km away
  8. 2.234 km ESE of Chignik, Alaska · 2223 days ago · 11 km deep · 82 km away
  9. 2.031 km E of Chignik, Alaska · 2229 days ago · 87 km deep · 81 km away
  10. 2.0115 km E of Chignik, Alaska · 2234 days ago · 47 km deep · 3 km away
  11. 2.074 km ENE of Chignik, Alaska · 2234 days ago · 55 km deep · 50 km away
  12. 1.627 km E of Chignik, Alaska · 2234 days ago · 9 km deep · 86 km away
  13. 2.026 km SE of Chignik, Alaska · 2234 days ago · 63 km deep · 94 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020c31l5j0. Read Sun, Oct 4, 2026, 10:49 PM UTC.