Alaska earthquakes

M3.1 earthquake 8 km SSE of Nelson Lagoon, Alaska

A magnitude 3.1 earthquake struck 8 km SSE of Nelson Lagoon, Alaska on Fri, Sep 25, 2020, 8:18 PM AKDT (04:18 UTC), 163 km (101 mi) below the surface.

A larger quake followed: M3.3 19 km ENE of Sand Point, Alaska. This one was a foreshock.

Sand Point forecastMore in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
3.1 (ml), minor
Local time
UTC
2020-09-26 04:18:03 UTC
Depth
163.3 km (101.5 mi), intermediate-depth
Epicenter
55.929° N, 161.151° 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 7.7 km horizontally, 6.3 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
125°
Stations used
26

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 15 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.950 km SW of Nelson Lagoon, Alaska · 2193 days ago · 159 km deep · 46 km away
  2. 1.8Alaska Peninsula · 2190 days ago · 58 km deep · 92 km away
  3. 1.617 km WSW of Ivanof Bay, Alaska · 2183 days ago · 20 km deep · 88 km away
  4. 1.920 km S of Sand Point, Alaska · 2179 days ago · 56 km deep · 96 km away
  5. 1.637 km ENE of King Cove, Alaska · 2178 days ago · 83 km deep · 93 km away
  6. 1.945 km SW of Sand Point, Alaska · 2175 days ago · 58 km deep · 97 km away
  7. 1.747 km SW of Sand Point, Alaska · 2174 days ago · 63 km deep · 92 km away
  8. 1.849 km SW of Nelson Lagoon, Alaska · 2174 days ago · 7 km deep · 45 km away
  9. 2.911 km WSW of Sand Point, Alaska · 2169 days ago · 64 km deep · 77 km away
  10. 3.119 km E of Sand Point, Alaska · 2163 days ago · 63 km deep · 90 km away
  11. 3.319 km ENE of Sand Point, Alaska · 2157 days ago · 66 km deep · 86 km away
  12. 2.239 km ENE of King Cove, Alaska · 2157 days ago · 112 km deep · 92 km away
  13. 2.0Alaska Peninsula · 2139 days ago · 81 km deep · 96 km away
  14. 1.666 km WSW of Nelson Lagoon, Alaska · 2139 days ago · 11 km deep · 67 km away
  15. 2.844 km ENE of Nelson Lagoon, Alaska · 2138 days ago · 152 km deep · 45 km away

Before

  1. 2.337 km ENE of King Cove, Alaska · 2201 days ago · 82 km deep · 95 km away
  2. 1.757 km SSW of Nelson Lagoon, Alaska · 2207 days ago · 148 km deep · 51 km away
  3. 1.925 km N of King Cove, Alaska · 2207 days ago · 126 km deep · 99 km away
  4. 2.144 km WSW of Ivanof Bay, Alaska · 2211 days ago · 86 km deep · 62 km away
  5. 3.414 km SSW of Ivanof Bay, Alaska · 2215 days ago · 78 km deep · 100 km away
  6. 1.557 km NE of King Cove, Alaska · 2216 days ago · 10 km deep · 65 km away
  7. 2.654 km SW of Nelson Lagoon, Alaska · 2223 days ago · 198 km deep · 53 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000c6aa (also filed as ak020cellayz). Read Mon, Sep 28, 2026, 7:04 AM UTC.