Alaska earthquakes

M2.6 earthquake 165 km SE of Chignik, Alaska

A magnitude 2.6 earthquake struck 165 km SE of Chignik, Alaska on Tue, Aug 22, 2023, 8:48 PM AKDT (04:48 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M4.7 south of 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
Alaska Earthquake Center
Local time
UTC
2023-08-23 04:48:28 UTC
Depth
3.2 km (2.0 mi), shallow
Epicenter
55.167° N, 156.675° 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)Alaska Earthquake CenterPreferred · Preliminary
2.7ML, local (Richter)USGS National Earthquake Information CenterReviewed · ±0.097 · 14 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
42

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 8 in the 30 days before it.

After

  1. 2.5112 km SE of Perryville, Alaska · 1135 days ago · 3 km deep · 71 km away
  2. 2.8Alaska Peninsula · 1125 days ago · 30 km deep · 94 km away
  3. 2.6118 km SE of Perryville, Alaska · 1119 days ago · 17 km deep · 67 km away
  4. 4.7south of Alaska · 1115 days ago · 5 km deep · 28 km away
  5. 2.8209 km SE of Chignik, Alaska · 1115 days ago · 4 km deep · 44 km away
  6. 3.4194 km SE of Chignik, Alaska · 1115 days ago · 0 km deep · 29 km away · felt by 1
  7. 2.172 km SE of Chignik, Alaska · 1113 days ago · 41 km deep · 94 km away
  8. 2.0155 km ESE of Chignik, Alaska · 1112 days ago · 10 km deep · 89 km away
  9. 3.176 km ESE of Perryville, Alaska · 1109 days ago · 44 km deep · 100 km away
  10. 2.7south of Alaska · 1108 days ago · 4 km deep · 77 km away
  11. 3.7201 km SE of Chignik, Alaska · 1105 days ago · 24 km deep · 35 km away
  12. 2.7193 km SE of Chignik, Alaska · 1104 days ago · 9 km deep · 28 km away
  13. 3.1197 km SE of Perryville, Alaska · 1097 days ago · 17 km deep · 51 km away
  14. 2.1112 km SSE of Perryville, Alaska · 1089 days ago · 29 km deep · 96 km away
  15. 2.6175 km SE of Perryville, Alaska · 1086 days ago · 20 km deep · 61 km away

Before

  1. 2.5197 km SE of Perryville, Alaska · 1138 days ago · 23 km deep · 60 km away
  2. 1.9125 km SE of Chignik, Alaska · 1144 days ago · 17 km deep · 41 km away
  3. 2.0147 km SSE of Perryville, Alaska · 1144 days ago · 23 km deep · 89 km away
  4. 3.0170 km SE of Chignik, Alaska · 1146 days ago · 27 km deep · 41 km away
  5. 3.0south of Alaska · 1153 days ago · 19 km deep · 8 km away
  6. 2.9167 km SSE of Chignik, Alaska · 1155 days ago · 24 km deep · 20 km away
  7. 2.2142 km SE of Perryville, Alaska · 1163 days ago · 34 km deep · 40 km away
  8. 2.8221 km SE of Chignik, Alaska · 1165 days ago · 11 km deep · 64 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak023aspyo3o (also filed as us7000ktq4). Read Thu, Oct 1, 2026, 11:20 AM UTC.