Alaska earthquakes

M2.3 earthquake 25 km S of Chignik, Alaska

A magnitude 2.3 earthquake struck 25 km S of Chignik, Alaska on Sun, Sep 2, 2018, 11:15 AM AKDT (19:15 UTC), 70 km (44 mi) below the surface.

A larger quake followed: M5.0 34 km SSE 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
2.3 (ML, local (Richter)), micro
Magnitude from
AACSE
Local time
UTC
2018-09-02 19:15:22 UTC
Depth
70.1 km (43.6 mi), intermediate-depth
Epicenter
56.063° N, 158.429° 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
49

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 25 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 2.218 km N of Chignik, Alaska · 2946 days ago · 86 km deep · 44 km away
  2. 2.164 km ESE of Perryville, Alaska · 2945 days ago · 25 km deep · 41 km away
  3. 2.241 km E of Chignik, Alaska · 2941 days ago · 62 km deep · 53 km away
  4. 1.966 km SSE of Chignik, Alaska · 2935 days ago · 45 km deep · 43 km away
  5. 3.337 km ESE of Perryville, Alaska · 2931 days ago · 63 km deep · 32 km away
  6. 1.925 km W of Ivanof Bay, Alaska · 2930 days ago · 110 km deep · 93 km away
  7. 2.051 km ESE of Port Heiden, Alaska · 2929 days ago · 84 km deep · 86 km away
  8. 3.052 km SE of Perryville, Alaska · 2923 days ago · 49 km deep · 47 km away
  9. 2.869 km SSE of Perryville, Alaska · 2921 days ago · 40 km deep · 90 km away
  10. 2.529 km SE of Chignik, Alaska · 2920 days ago · 71 km deep · 21 km away
  11. 2.554 km SSE of Perryville, Alaska · 2920 days ago · 21 km deep · 68 km away
  12. 2.165 km ENE of Chignik, Alaska · 2916 days ago · 58 km deep · 79 km away
  13. 2.399 km SE of Chignik, Alaska · 2915 days ago · 12 km deep · 81 km away
  14. 2.566 km SE of Perryville, Alaska · 2914 days ago · 40 km deep · 72 km away
  15. 5.034 km SSE of Perryville, Alaska · 2913 days ago · 48 km deep · 55 km away · tsunami flag
  16. 2.026 km SSE of Perryville, Alaska · 2913 days ago · 49 km deep · 54 km away
  17. 2.722 km SSE of Perryville, Alaska · 2911 days ago · 44 km deep · 52 km away
  18. 2.611 km WNW of Ivanof Bay, Alaska · 2908 days ago · 107 km deep · 78 km away
  19. 2.463 km SE of Perryville, Alaska · 2906 days ago · 15 km deep · 65 km away
  20. 2.459 km E of Chignik, Alaska · 2905 days ago · 72 km deep · 70 km away
  21. 2.665 km E of Chignik, Alaska · 2903 days ago · 56 km deep · 76 km away
  22. 2.671 km SE of Perryville, Alaska · 2902 days ago · 17 km deep · 76 km away
  23. 2.717 km WNW of Chignik Lake, Alaska · 2896 days ago · 3 km deep · 46 km away
  24. 2.484 km SSE of Perryville, Alaska · 2894 days ago · 26 km deep · 100 km away
  25. 2.528 km W of Chignik Lake, Alaska · 2891 days ago · 8 km deep · 54 km away

Before

  1. 2.054 km ESE of Chignik, Alaska · 2952 days ago · 40 km deep · 57 km away
  2. 1.731 km ENE of Chignik, Alaska · 2953 days ago · 67 km deep · 47 km away
  3. 2.744 km ESE of Chignik, Alaska · 2953 days ago · 54 km deep · 47 km away
  4. 1.778 km E of Chignik, Alaska · 2960 days ago · 67 km deep · 86 km away
  5. 1.821 km SE of Chignik, Alaska · 2967 days ago · 84 km deep · 16 km away
  6. 2.515 km S of Chignik Lake, Alaska · 2968 days ago · 73 km deep · 19 km away
  7. 2.766 km SSE of Perryville, Alaska · 2971 days ago · 35 km deep · 84 km away
  8. 2.536 km SE of Perryville, Alaska · 2973 days ago · 48 km deep · 51 km away
  9. 2.325 km S of Ivanof Bay, Alaska · 2973 days ago · 94 km deep · 75 km away
  10. 3.0Alaska Peninsula · 2973 days ago · 132 km deep · 65 km away
  11. 2.050 km SSE of Perryville, Alaska · 2974 days ago · 59 km deep · 62 km away
  12. 2.96 km SSW of Chignik Lagoon, Alaska · 2976 days ago · 79 km deep · 22 km away
  13. 3.079 km SE of Perryville, Alaska · 2979 days ago · 25 km deep · 79 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event aacse018b9i2iyp. Read Thu, Oct 1, 2026, 3:16 AM UTC.