Alaska earthquakes

M2.9 earthquake 191 km SSE of Atka, Alaska

A magnitude 2.9 earthquake struck 191 km SSE of Atka, Alaska on Thu, Nov 12, 2020, 12:54 AM HAST (10:54 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.2 206 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
2.9 (ml), micro
Local time
UTC
2020-11-12 10:54:37 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.627° N, 173.073° 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 4.6 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
249°, poorly surrounded by stations
Stations used
17

Nearby

Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 2.4161 km SSE of Atka, Alaska · 2144 days ago · 10 km deep · 33 km away
  2. 3.2206 km SSE of Atka, Alaska · 2143 days ago · 27 km deep · 24 km away
  3. 3.293 km SSE of Atka, Alaska · 2134 days ago · 35 km deep · 97 km away
  4. 2.8101 km SSE of Atka, Alaska · 2134 days ago · 35 km deep · 92 km away
  5. 2.0109 km S of Atka, Alaska · 2127 days ago · 65 km deep · 89 km away
  6. 2.0144 km S of Atka, Alaska · 2127 days ago · 19 km deep · 78 km away
  7. 2.2157 km S of Atka, Alaska · 2109 days ago · 3 km deep · 78 km away
  8. 2.6180 km SSE of Atka, Alaska · 2101 days ago · 10 km deep · 39 km away

Before

  1. 2.6166 km SSE of Atka, Alaska · 2156 days ago · 10 km deep · 27 km away
  2. 2.8Andreanof Islands, Aleutian Islands, Alaska · 2159 days ago · 26 km deep · 83 km away
  3. 2.0161 km SSE of Atka, Alaska · 2162 days ago · 7 km deep · 44 km away
  4. 1.699 km SSE of Atka, Alaska · 2164 days ago · 26 km deep · 93 km away
  5. 2.6194 km SSE of Atka, Alaska · 2170 days ago · 10 km deep · 17 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000clgl (also filed as ak020ekfn0dh). Read Tue, Sep 29, 2026, 2:54 PM UTC.