Alaska earthquakes

M2.4 earthquake 161 km SSE of Atka, Alaska

A magnitude 2.4 earthquake struck 161 km SSE of Atka, Alaska on Sat, Nov 14, 2020, 9:57 PM HAST (07:57 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.9 91 km S 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
2.4 (ml), micro
Local time
UTC
2020-11-15 07:57:38 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.830° N, 173.420° 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 5.0 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.15
Depth from
Operator assigned
Station coverage gap
300°, poorly surrounded by stations
Stations used
16

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.988 km S of Atka, Alaska · 2145 days ago · 13 km deep · 86 km away
  2. 3.2206 km SSE of Atka, Alaska · 2144 days ago · 27 km deep · 45 km away
  3. 3.6103 km SE of Atka, Alaska · 2139 days ago · 35 km deep · 97 km away
  4. 3.293 km SSE of Atka, Alaska · 2135 days ago · 35 km deep · 68 km away
  5. 2.8101 km SSE of Atka, Alaska · 2135 days ago · 35 km deep · 67 km away
  6. 3.1149 km S of Atka, Alaska · 2130 days ago · 22 km deep · 80 km away
  7. 3.373 km SE of Atka, Alaska · 2129 days ago · 14 km deep · 94 km away
  8. 2.0109 km S of Atka, Alaska · 2128 days ago · 65 km deep · 56 km away
  9. 2.0144 km S of Atka, Alaska · 2128 days ago · 19 km deep · 48 km away
  10. 3.0Andreanof Islands, Aleutian Islands, Alaska · 2123 days ago · 12 km deep · 82 km away
  11. 2.7100 km SE of Atka, Alaska · 2123 days ago · 12 km deep · 80 km away
  12. 2.3152 km SSW of Atka, Alaska · 2115 days ago · 6 km deep · 95 km away
  13. 2.098 km S of Atka, Alaska · 2113 days ago · 25 km deep · 75 km away
  14. 2.2157 km S of Atka, Alaska · 2110 days ago · 3 km deep · 52 km away
  15. 2.6180 km SSE of Atka, Alaska · 2101 days ago · 10 km deep · 28 km away
  16. 1.8Andreanof Islands, Aleutian Islands, Alaska · 2094 days ago · 16 km deep · 87 km away
  17. 2.684 km SSE of Atka, Alaska · 2093 days ago · 147 km deep · 77 km away
  18. 1.974 km SE of Atka, Alaska · 2085 days ago · 12 km deep · 99 km away
  19. 4.991 km S of Atka, Alaska · 2085 days ago · 19 km deep · 76 km away

Before

  1. 3.3112 km SE of Atka, Alaska · 2146 days ago · 55 km deep · 85 km away
  2. 3.090 km SSE of Atka, Alaska · 2146 days ago · 10 km deep · 75 km away
  3. 2.9191 km SSE of Atka, Alaska · 2148 days ago · 10 km deep · 33 km away
  4. 2.6166 km SSE of Atka, Alaska · 2156 days ago · 10 km deep · 22 km away
  5. 2.8Andreanof Islands, Aleutian Islands, Alaska · 2159 days ago · 26 km deep · 50 km away
  6. 2.0161 km SSE of Atka, Alaska · 2162 days ago · 7 km deep · 17 km away
  7. 1.699 km SSE of Atka, Alaska · 2164 days ago · 26 km deep · 62 km away
  8. 2.6194 km SSE of Atka, Alaska · 2171 days ago · 10 km deep · 33 km away
  9. 2.892 km SE of Atka, Alaska · 2171 days ago · 35 km deep · 82 km away
  10. 2.1181 km SSW of Atka, Alaska · 2173 days ago · 26 km deep · 97 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000cm79 (also filed as ak020epche4b). Read Wed, Sep 30, 2026, 12:35 AM UTC.