Alaska earthquakes

M2.7 earthquake 166 km SSE of Atka, Alaska

A magnitude 2.7 earthquake struck 166 km SSE of Atka, Alaska on Mon, Sep 14, 2020, 6:37 AM HADT (15:37 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.1 180 km SSE of Atka, Alaska. This one was a foreshock.

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

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The earthquake

Magnitude
2.7 (ml), micro
Local time
UTC
2020-09-14 15:37:57 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.839° N, 173.195° 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.

Location uncertainty
About 3.6 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.12
Depth from
Operator assigned
Station coverage gap
299°, poorly surrounded by stations
Stations used
20

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.2211 km SSE of Atka, Alaska · 2204 days ago · 10 km deep · 49 km away
  2. 2.7176 km SSE of Atka, Alaska · 2202 days ago · 10 km deep · 18 km away
  3. 2.9116 km ESE of Atka, Alaska · 2199 days ago · 35 km deep · 96 km away
  4. 2.8191 km S of Atka, Alaska · 2197 days ago · 10 km deep · 97 km away
  5. 2.6195 km S of Atka, Alaska · 2196 days ago · 10 km deep · 97 km away
  6. 1.6139 km S of Atka, Alaska · 2194 days ago · 5 km deep · 73 km away
  7. 1.583 km SSE of Atka, Alaska · 2193 days ago · 8 km deep · 86 km away
  8. 1.787 km SSE of Atka, AK · 2193 days ago · 39 km deep · 79 km away
  9. 2.3231 km SSE of Atka, Alaska · 2193 days ago · 8 km deep · 72 km away
  10. 2.2214 km S of Atka, Alaska · 2193 days ago · 8 km deep · 69 km away
  11. 1.7152 km S of Atka, Alaska · 2193 days ago · 5 km deep · 70 km away
  12. 1.7Andreanof Islands, Aleutian Islands, Alaska · 2186 days ago · 7 km deep · 93 km away
  13. 4.1180 km SSE of Atka, Alaska · 2183 days ago · 24 km deep · 16 km away
  14. 2.3171 km SSE of Atka, Alaska · 2177 days ago · 12 km deep · 20 km away
  15. 2.892 km SE of Atka, Alaska · 2169 days ago · 35 km deep · 82 km away
  16. 2.6194 km SSE of Atka, Alaska · 2169 days ago · 10 km deep · 33 km away
  17. 1.699 km SSE of Atka, Alaska · 2162 days ago · 26 km deep · 69 km away
  18. 2.0161 km SSE of Atka, Alaska · 2160 days ago · 7 km deep · 32 km away
  19. 2.8Andreanof Islands, Aleutian Islands, Alaska · 2157 days ago · 26 km deep · 64 km away
  20. 2.6166 km SSE of Atka, Alaska · 2154 days ago · 10 km deep · 7 km away
  21. 2.9191 km SSE of Atka, Alaska · 2146 days ago · 10 km deep · 25 km away
  22. 3.090 km SSE of Atka, Alaska · 2145 days ago · 10 km deep · 77 km away

Before

  1. 2.2148 km S of Atka, Alaska · 2211 days ago · 14 km deep · 52 km away
  2. 3.1162 km SSE of Atka, Alaska · 2217 days ago · 21 km deep · 28 km away
  3. 2.8190 km SSE of Atka, Alaska · 2221 days ago · 10 km deep · 25 km away
  4. 2.668 km SSE of Atka, Alaska · 2227 days ago · 28 km deep · 98 km away
  5. 1.9129 km SE of Atka, Alaska · 2230 days ago · 21 km deep · 66 km away
  6. 2.7174 km SSE of Atka, Alaska · 2231 days ago · 19 km deep · 9 km away
  7. 3.0153 km SSE of Atka, Alaska · 2234 days ago · 10 km deep · 16 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000c2yt (also filed as ak020buxt6te). Read Mon, Sep 28, 2026, 3:16 AM UTC.