Alaska earthquakes

M3.1 earthquake 157 km SE of Chignik, Alaska

A magnitude 3.1 earthquake struck 157 km SE of Chignik, Alaska on Thu, Nov 2, 2023, 12:09 AM AKDT (08:09 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M4.4 202 km SE of Perryville, 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
3.1 (ML, local (Richter)), minor
Magnitude from
Alaska Earthquake Center
Local time
UTC
2023-11-02 08:09:12 UTC
Depth
16.0 km (9.9 mi), shallow
Epicenter
55.133° N, 156.961° 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
3.1ML, local (Richter)Alaska Earthquake CenterPreferred · Preliminary
3.0ML, local (Richter)USGS National Earthquake Information CenterReviewed · ±0.081 · 20 stations

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used
45

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 21 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 2.4195 km SE of Chignik, Alaska · 1065 days ago · 1 km deep · 53 km away
  2. 3.7207 km SE of Chignik, Alaska · 1062 days ago · 1 km deep · 53 km away
  3. 2.7195 km SE of Chignik, Alaska · 1061 days ago · 25 km deep · 40 km away
  4. 2.5151 km SE of Perryville, Alaska · 1054 days ago · 23 km deep · 60 km away
  5. 2.9129 km SSE of Perryville, Alaska · 1052 days ago · 26 km deep · 89 km away
  6. 2.8213 km SE of Perryville, Alaska · 1047 days ago · 5 km deep · 58 km away
  7. 2.4152 km SE of Perryville, Alaska · 1046 days ago · 14 km deep · 30 km away
  8. 2.495 km SE of Perryville, Alaska · 1041 days ago · 12 km deep · 76 km away
  9. 2.9185 km SE of Perryville, Alaska · 1039 days ago · 9 km deep · 37 km away
  10. 3.1195 km SE of Perryville, Alaska · 1039 days ago · 26 km deep · 42 km away
  11. 2.8171 km SE of Chignik, Alaska · 1038 days ago · 28 km deep · 57 km away
  12. 3.7199 km SE of Chignik, Alaska · 1032 days ago · 12 km deep · 61 km away
  13. 2.7130 km SE of Chignik, Alaska · 1030 days ago · 25 km deep · 40 km away
  14. 2.465 km SSE of Chignik, Alaska · 1026 days ago · 8 km deep · 93 km away
  15. 3.2152 km SE of Chignik, Alaska · 1018 days ago · 16 km deep · 14 km away
  16. 4.4202 km SE of Perryville, Alaska · 1014 days ago · 15 km deep · 52 km away
  17. 3.3203 km SE of Perryville, Alaska · 1014 days ago · 3 km deep · 53 km away
  18. 3.4194 km SE of Perryville, Alaska · 1013 days ago · 33 km deep · 45 km away
  19. 3.3198 km SE of Perryville, Alaska · 1012 days ago · 2 km deep · 46 km away
  20. 2.4116 km SE of Chignik, Alaska · 1010 days ago · 2 km deep · 54 km away
  21. 2.068 km ESE of Perryville, Alaska · 1010 days ago · 18 km deep · 95 km away

Before

  1. 2.8121 km ESE of Chignik, Alaska · 1066 days ago · 12 km deep · 99 km away
  2. 2.4180 km SE of Perryville, Alaska · 1068 days ago · 9 km deep · 35 km away
  3. 2.6118 km SE of Chignik, Alaska · 1070 days ago · 19 km deep · 40 km away
  4. 2.6175 km SE of Perryville, Alaska · 1088 days ago · 20 km deep · 48 km away
  5. 2.1112 km SSE of Perryville, Alaska · 1091 days ago · 29 km deep · 77 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak023e279ms9 (also filed as us7000l89m). Read Sat, Oct 3, 2026, 11:20 AM UTC.