Alaska earthquakes

M4.1 earthquake 180 km SSE of Atka, Alaska

A magnitude 4.1 earthquake struck 180 km SSE of Atka, Alaska on Mon, Oct 5, 2020, 7:19 PM HADT (04:19 UTC), 24 km (15 mi) below the surface.

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The earthquake

Magnitude
4.1 (mb), light
Local time
UTC
2020-10-06 04:19:07 UTC
Depth
24.1 km (15.0 mi), shallow
Epicenter
50.699° N, 173.183° 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 6.4 km horizontally, 4.8 km in depth
Magnitude uncertainty
±0.07
Depth from
From location
Station coverage gap
131°
Stations used
133

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 2.3171 km SSE of Atka, Alaska · 2177 days ago · 12 km deep · 17 km away
  2. 2.892 km SE of Atka, Alaska · 2169 days ago · 35 km deep · 97 km away
  3. 2.6194 km SSE of Atka, Alaska · 2169 days ago · 10 km deep · 18 km away
  4. 1.699 km SSE of Atka, Alaska · 2162 days ago · 26 km deep · 82 km away
  5. 2.0161 km SSE of Atka, Alaska · 2160 days ago · 7 km deep · 34 km away
  6. 2.8Andreanof Islands, Aleutian Islands, Alaska · 2158 days ago · 26 km deep · 72 km away
  7. 2.6166 km SSE of Atka, Alaska · 2154 days ago · 10 km deep · 19 km away
  8. 2.9191 km SSE of Atka, Alaska · 2146 days ago · 10 km deep · 11 km away
  9. 3.090 km SSE of Atka, Alaska · 2145 days ago · 10 km deep · 92 km away
  10. 3.3112 km SE of Atka, Alaska · 2144 days ago · 55 km deep · 94 km away
  11. 2.4161 km SSE of Atka, Alaska · 2143 days ago · 10 km deep · 22 km away
  12. 3.2206 km SSE of Atka, Alaska · 2142 days ago · 27 km deep · 29 km away
  13. 3.293 km SSE of Atka, Alaska · 2133 days ago · 35 km deep · 87 km away
  14. 2.8101 km SSE of Atka, Alaska · 2133 days ago · 35 km deep · 83 km away
  15. 3.1149 km S of Atka, Alaska · 2128 days ago · 22 km deep · 98 km away
  16. 2.0109 km S of Atka, Alaska · 2126 days ago · 65 km deep · 78 km away
  17. 2.0144 km S of Atka, Alaska · 2126 days ago · 19 km deep · 68 km away

Before

  1. 1.7152 km S of Atka, Alaska · 2193 days ago · 5 km deep · 72 km away
  2. 2.2214 km S of Atka, Alaska · 2193 days ago · 8 km deep · 56 km away
  3. 2.3231 km SSE of Atka, Alaska · 2193 days ago · 8 km deep · 57 km away
  4. 1.787 km SSE of Atka, AK · 2193 days ago · 39 km deep · 94 km away
  5. 1.583 km SSE of Atka, Alaska · 2194 days ago · 8 km deep · 100 km away
  6. 1.6139 km S of Atka, Alaska · 2194 days ago · 5 km deep · 78 km away
  7. 2.6195 km S of Atka, Alaska · 2196 days ago · 10 km deep · 92 km away
  8. 2.8191 km S of Atka, Alaska · 2197 days ago · 10 km deep · 93 km away
  9. 2.7176 km SSE of Atka, Alaska · 2202 days ago · 10 km deep · 11 km away
  10. 2.2211 km SSE of Atka, Alaska · 2205 days ago · 10 km deep · 34 km away
  11. 2.7166 km SSE of Atka, Alaska · 2205 days ago · 10 km deep · 16 km away
  12. 2.2148 km S of Atka, Alaska · 2211 days ago · 14 km deep · 57 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000c63a (also filed as ak020cv4z0hy). Read Mon, Sep 28, 2026, 5:03 AM UTC.