Alaska earthquakes

M2.3 earthquake 66 km WNW of Nikolski, Alaska

A magnitude 2.3 earthquake struck 66 km WNW of Nikolski, Alaska on Tue, Oct 20, 2020, 2:18 PM AKDT (22:18 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.5 124 km W 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
2.3 (ml), micro
Local time
UTC
2020-10-20 22:18:46 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
53.162° N, 169.784° 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 3.1 km horizontally, 2.0 km in depth
Depth from
Operator assigned
Station coverage gap
236°, poorly surrounded by stations
Stations used
12

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 2.564 km SW of Nikolski, Alaska · 2165 days ago · 35 km deep · 65 km away
  2. 3.442 km W of Nikolski, Alaska · 2164 days ago · 98 km deep · 30 km away
  3. 2.245 km SW of Nikolski, Alaska · 2157 days ago · 17 km deep · 63 km away
  4. 3.7152 km WNW of Nikolski, Alaska · 2157 days ago · 139 km deep · 87 km away
  5. 2.420 km SE of Nikolski, Alaska · 2151 days ago · 67 km deep · 85 km away
  6. 3.6126 km WSW of Nikolski, Alaska · 2147 days ago · 47 km deep · 99 km away
  7. 3.264 km SSW of Nikolski, Alaska · 2146 days ago · 35 km deep · 95 km away
  8. 2.8120 km WSW of Nikolski, Alaska · 2141 days ago · 25 km deep · 89 km away
  9. 2.752 km W of Nikolski, Alaska · 2136 days ago · 10 km deep · 29 km away
  10. 2.448 km W of Nikolski, Alaska · 2135 days ago · -3 km deep · 30 km away
  11. 2.952 km SSW of Nikolski, Alaska · 2130 days ago · 3 km deep · 90 km away
  12. 2.937 km SW of Nikolski, Alaska · 2130 days ago · 9 km deep · 63 km away
  13. 2.255 km SSW of Nikolski, Alaska · 2128 days ago · 40 km deep · 80 km away
  14. 3.319 km ESE of Nikolski, Alaska · 2121 days ago · 90 km deep · 86 km away
  15. 3.3134 km WNW of Nikolski, Alaska · 2116 days ago · 148 km deep · 70 km away
  16. 4.5124 km W of Nikolski, Alaska · 2116 days ago · 229 km deep · 62 km away
  17. 2.056 km SW of Nikolski, Alaska · 2113 days ago · 21 km deep · 73 km away
  18. 1.646 km W of Nikolski, Alaska · 2113 days ago · 1 km deep · 35 km away
  19. 3.028 km WSW of Nikolski, Alaska · 2112 days ago · 117 km deep · 55 km away
  20. 4.2127 km WSW of Nikolski, Alaska · 2110 days ago · 53 km deep · 100 km away

Before

  1. 2.143 km SSE of Nikolski, Alaska · 2173 days ago · 18 km deep · 100 km away
  2. 1.930 km SW of Nikolski, Alaska · 2179 days ago · 62 km deep · 61 km away
  3. 1.827 km SSE of Nikolski, Alaska · 2186 days ago · 40 km deep · 85 km away
  4. 2.439 km SW of Nikolski, Alaska · 2189 days ago · 39 km deep · 61 km away
  5. 3.5130 km WSW of Nikolski, Alaska · 2194 days ago · 49 km deep · 99 km away
  6. 2.236 km ENE of Nikolski, Alaska · 2195 days ago · 107 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000c8ap (also filed as ak020dil7iq3). Read Wed, Sep 30, 2026, 1:37 AM UTC.