Alaska earthquakes

M2.6 earthquake 134 km SW of Nikolski, Alaska

A magnitude 2.6 earthquake struck 134 km SW of Nikolski, Alaska on Thu, Sep 3, 2020, 9:15 AM HADT (18:15 UTC), 33 km (20 mi) below the surface.

A larger quake followed: M5.5 129 km SSW of Nikolski, Alaska. 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
2.6 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2020-09-03 18:15:30 UTC
Depth
32.8 km (20.3 mi), shallow
Epicenter
52.214° N, 170.451° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
2.6ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.115 · 10 stations
2.1ML, local (Richter)Alaska Earthquake CenterPreliminary

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 7.0 km horizontally, 16.4 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
214°, poorly surrounded by stations
Stations used
18

Nearby

Within 100 km, magnitude 1.5 and up: 35 in the 60 days after this one and 21 in the 30 days before it.

After

  1. 1.744 km WSW of Nikolski, Alaska · 2222 days ago · 23 km deep · 91 km away
  2. 2.495 km W of Nikolski, Alaska · 2218 days ago · 123 km deep · 97 km away
  3. 1.876 km SW of Nikolski, Alaska · 2214 days ago · 32 km deep · 65 km away
  4. 2.674 km SW of Nikolski, Alaska · 2212 days ago · 35 km deep · 64 km away
  5. 3.0209 km SW of Nikolski, Alaska · 2211 days ago · 36 km deep · 75 km away
  6. 2.9170 km SW of Nikolski, Alaska · 2211 days ago · 10 km deep · 51 km away
  7. 3.0194 km ESE of Atka, Alaska · 2208 days ago · 36 km deep · 82 km away
  8. 3.4157 km W of Nikolski, Alaska · 2207 days ago · 219 km deep · 87 km away
  9. 3.1131 km WSW of Nikolski, Alaska · 2201 days ago · 35 km deep · 16 km away
  10. 5.5129 km SSW of Nikolski, Alaska · 2199 days ago · 17 km deep · 64 km away · tsunami flag
  11. 3.2131 km SSW of Nikolski, Alaska · 2199 days ago · 10 km deep · 63 km away
  12. 2.8116 km SSW of Nikolski, Alaska · 2199 days ago · 10 km deep · 65 km away
  13. 3.7131 km SSW of Nikolski, Alaska · 2199 days ago · 10 km deep · 62 km away
  14. 4.4126 km SSW of Nikolski, Alaska · 2199 days ago · 10 km deep · 59 km away
  15. 3.3Fox Islands, Aleutian Islands, Alaska · 2199 days ago · 10 km deep · 65 km away
  16. 3.5130 km WSW of Nikolski, Alaska · 2199 days ago · 49 km deep · 25 km away
  17. 4.1118 km SSW of Nikolski, Alaska · 2199 days ago · 26 km deep · 52 km away
  18. 4.5123 km SSW of Nikolski, Alaska · 2199 days ago · 23 km deep · 61 km away
  19. 5.2120 km SSW of Nikolski, Alaska · 2198 days ago · 15 km deep · 64 km away
  20. 4.3117 km SSW of Nikolski, Alaska · 2197 days ago · 10 km deep · 67 km away
  21. 2.7118 km SSW of Nikolski, Alaska · 2197 days ago · 25 km deep · 64 km away
  22. 3.1127 km SSW of Nikolski, Alaska · 2197 days ago · 10 km deep · 64 km away
  23. 2.439 km SW of Nikolski, Alaska · 2195 days ago · 39 km deep · 95 km away
  24. 3.0193 km WSW of Nikolski, Alaska · 2193 days ago · 35 km deep · 62 km away
  25. 4.9125 km SSW of Nikolski, Alaska · 2186 days ago · 10 km deep · 65 km away
  26. 3.4124 km SSW of Nikolski, Alaska · 2186 days ago · 27 km deep · 64 km away
  27. 3.0128 km SSW of Nikolski, Alaska · 2184 days ago · 10 km deep · 65 km away
  28. 2.7186 km E of Atka, Alaska · 2184 days ago · 35 km deep · 76 km away
  29. 3.0191 km E of Atka, Alaska · 2182 days ago · 37 km deep · 76 km away
  30. 3.4183 km WSW of Nikolski, Alaska · 2179 days ago · 35 km deep · 51 km away
  31. 3.7128 km SW of Nikolski, Alaska · 2177 days ago · 21 km deep · 6 km away
  32. 2.564 km SW of Nikolski, Alaska · 2170 days ago · 35 km deep · 70 km away
  33. 2.5192 km ESE of Atka, Alaska · 2170 days ago · 37 km deep · 80 km away
  34. 2.6130 km SSW of Nikolski, Alaska · 2170 days ago · 27 km deep · 66 km away
  35. 2.9179 km WSW of Nikolski, Alaska · 2167 days ago · 35 km deep · 49 km away

Before

  1. 3.8183 km ESE of Atka, Alaska · 2227 days ago · 37 km deep · 87 km away
  2. 3.0129 km SSW of Nikolski, Alaska · 2232 days ago · 10 km deep · 50 km away
  3. 3.0114 km SSW of Nikolski, Alaska · 2234 days ago · 10 km deep · 78 km away
  4. 4.9113 km SSW of Nikolski, Alaska · 2234 days ago · 18 km deep · 68 km away
  5. 3.3108 km SW of Nikolski, Alaska · 2237 days ago · 35 km deep · 28 km away
  6. 1.990 km SW of Nikolski, Alaska · 2237 days ago · 52 km deep · 47 km away
  7. 2.8207 km SW of Nikolski, Alaska · 2237 days ago · 10 km deep · 83 km away
  8. 3.4200 km SW of Nikolski, Alaska · 2240 days ago · 20 km deep · 66 km away
  9. 3.6196 km SW of Nikolski, Alaska · 2240 days ago · 23 km deep · 62 km away
  10. 3.8224 km ESE of Atka, Alaska · 2240 days ago · 10 km deep · 95 km away
  11. 3.9214 km SW of Nikolski, Alaska · 2241 days ago · 10 km deep · 81 km away
  12. 3.7212 km ESE of Atka, Alaska · 2242 days ago · 33 km deep · 81 km away
  13. 3.6201 km SW of Nikolski, Alaska · 2242 days ago · 33 km deep · 67 km away
  14. 3.8201 km E of Atka, Alaska · 2242 days ago · 35 km deep · 69 km away
  15. 3.3212 km ESE of Atka, Alaska · 2242 days ago · 26 km deep · 79 km away
  16. 4.3214 km ESE of Atka, Alaska · 2242 days ago · 10 km deep · 90 km away
  17. 3.3193 km ESE of Atka, Alaska · 2242 days ago · 25 km deep · 77 km away
  18. 2.9206 km ESE of Atka, Alaska · 2242 days ago · 10 km deep · 76 km away
  19. 2.393 km SSW of Nikolski, Alaska · 2243 days ago · 16 km deep · 58 km away
  20. 3.0171 km W of Nikolski, Alaska · 2246 days ago · 135 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000bnrd (also filed as ak020bcsjtc0). Read Mon, Oct 5, 2026, 9:19 AM UTC.