Alaska earthquakes

M1.7 earthquake 121 km S of McCarthy, Alaska

A magnitude 1.7 earthquake struck 121 km S of McCarthy, Alaska on Sun, Aug 27, 2023, 10:00 PM AKDT (06:00 UTC), 1 km (1 mi) below the surface.

A larger quake followed: M3.2 133 km S of McCarthy, Alaska. This one was a foreshock.

Cordova 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
1.7 (ml), micro
Local time
UTC
2023-08-28 06:00:58 UTC
Depth
1.0 km (0.6 mi), shallow
Epicenter
60.359° N, 143.346° 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.

Stations used
40

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 3 in the 30 days before it.

After

  1. 1.643 km SE of Cordova, Alaska · 1127 days ago · 12 km deep · 100 km away
  2. 1.7Southeastern Alaska · 1124 days ago · 4 km deep · 100 km away
  3. 1.7125 km S of McCarthy, Alaska · 1117 days ago · 5 km deep · 13 km away
  4. 1.6126 km WNW of Yakutat, Alaska · 1112 days ago · 7 km deep · 94 km away
  5. 1.7124 km S of McCarthy, Alaska · 1109 days ago · 3 km deep · 14 km away
  6. 1.9121 km ESE of Cordova, Alaska · 1108 days ago · 9 km deep · 17 km away
  7. 1.6119 km ESE of Cordova, Alaska · 1108 days ago · 7 km deep · 18 km away
  8. 1.5Southern Alaska · 1104 days ago · 11 km deep · 65 km away
  9. 1.5Southern Alaska · 1102 days ago · 9 km deep · 13 km away
  10. 1.9123 km S of McCarthy, Alaska · 1100 days ago · 1 km deep · 15 km away
  11. 2.3129 km S of McCarthy, Alaska · 1092 days ago · 9 km deep · 9 km away
  12. 2.1Southern Alaska · 1092 days ago · 2 km deep · 55 km away
  13. 1.6108 km SE of McCarthy, Alaska · 1090 days ago · 6 km deep · 96 km away
  14. 3.2133 km S of McCarthy, Alaska · 1089 days ago · 1 km deep · 13 km away · felt by 1
  15. 1.7129 km S of McCarthy, Alaska · 1089 days ago · 1 km deep · 8 km away
  16. 1.7163 km ESE of Cordova, Alaska · 1089 days ago · 16 km deep · 57 km away
  17. 1.5134 km S of McCarthy, Alaska · 1088 days ago · 2 km deep · 13 km away
  18. 1.598 km S of McCarthy, Alaska · 1085 days ago · 2 km deep · 28 km away
  19. 1.8130 km S of McCarthy, Alaska · 1080 days ago · 7 km deep · 9 km away
  20. 1.5Southern Alaska · 1075 days ago · 11 km deep · 99 km away

Before

  1. 1.8105 km S of McCarthy, Alaska · 1146 days ago · 3 km deep · 22 km away
  2. 2.3109 km E of Cordova, Alaska · 1154 days ago · 1 km deep · 24 km away
  3. 1.795 km S of McCarthy, Alaska · 1155 days ago · 4 km deep · 27 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak023b10k0kr. Read Wed, Sep 30, 2026, 5:11 PM UTC.