Alaska earthquakes

M2.5 earthquake 123 km SE of Chignik, Alaska

A magnitude 2.5 earthquake struck 123 km SE of Chignik, Alaska on Fri, May 18, 2018, 8:35 AM AKDT (16:35 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M4.1 110 km E of Chignik, 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
2.5 (ML, local (Richter)), micro
Magnitude from
AACSE
Local time
UTC
2018-05-18 16:35:15 UTC
Depth
23.2 km (14.4 mi), shallow
Epicenter
55.495° N, 157.035° 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
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 28 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 2.8127 km SE of Chignik, Alaska · 3055 days ago · 16 km deep · 4 km away
  2. 2.052 km SE of Perryville, Alaska · 3054 days ago · 19 km deep · 99 km away
  3. 2.5138 km E of Chignik, Alaska · 3054 days ago · 48 km deep · 91 km away
  4. 2.769 km SSE of Perryville, Alaska · 3050 days ago · 45 km deep · 97 km away
  5. 2.6204 km SE of Perryville, Alaska · 3049 days ago · 46 km deep · 97 km away
  6. 2.7100 km ESE of Chignik, Alaska · 3049 days ago · 43 km deep · 65 km away
  7. 2.6141 km ESE of Chignik, Alaska · 3049 days ago · 55 km deep · 55 km away
  8. 2.2140 km E of Chignik, Alaska · 3048 days ago · 29 km deep · 95 km away
  9. 2.639 km S of Chignik, Alaska · 3048 days ago · 60 km deep · 96 km away
  10. 2.5136 km ESE of Chignik, Alaska · 3047 days ago · 48 km deep · 76 km away
  11. 2.966 km SE of Chignik, Alaska · 3047 days ago · 0 km deep · 57 km away
  12. 2.349 km E of Chignik, Alaska · 3046 days ago · 53 km deep · 100 km away
  13. 2.378 km ESE of Chignik, Alaska · 3045 days ago · 17 km deep · 58 km away
  14. 2.472 km SE of Perryville, Alaska · 3044 days ago · 41 km deep · 90 km away
  15. 2.6132 km SSE of Perryville, Alaska · 3039 days ago · 33 km deep · 96 km away
  16. 4.1110 km E of Chignik, Alaska · 3030 days ago · 42 km deep · 87 km away
  17. 2.541 km ESE of Perryville, Alaska · 3026 days ago · 70 km deep · 99 km away
  18. 2.164 km E of Chignik, Alaska · 3023 days ago · 47 km deep · 84 km away
  19. 2.468 km E of Chignik, Alaska · 3019 days ago · 44 km deep · 82 km away
  20. 2.0151 km SE of Chignik, Alaska · 3016 days ago · 5 km deep · 30 km away
  21. 1.845 km SSE of Chignik, Alaska · 3015 days ago · 74 km deep · 87 km away
  22. 2.2143 km SE of Chignik, AK · 3011 days ago · 20 km deep · 25 km away
  23. 2.1125 km ESE of Chignik, Alaska · 3010 days ago · 64 km deep · 75 km away
  24. 2.465 km SE of Perryville, Alaska · 3005 days ago · 40 km deep · 91 km away
  25. 2.3Alaska Peninsula · 3004 days ago · 64 km deep · 80 km away
  26. 3.6111 km E of Chignik, Alaska · 3004 days ago · 46 km deep · 85 km away
  27. 2.367 km SE of Perryville, Alaska · 3004 days ago · 37 km deep · 91 km away
  28. 2.9131 km E of Chignik, Alaska · 3004 days ago · 70 km deep · 90 km away

Before

  1. 2.754 km ESE of Perryville, Alaska · 3061 days ago · 18 km deep · 86 km away
  2. 2.742 km E of Perryville, Alaska · 3061 days ago · 62 km deep · 100 km away
  3. 1.8135 km SE of Chignik, Alaska · 3062 days ago · 9 km deep · 14 km away
  4. 1.866 km E of Chignik, Alaska · 3062 days ago · 57 km deep · 100 km away
  5. 2.7191 km SE of Chignik, Alaska · 3063 days ago · 20 km deep · 70 km away
  6. 2.5158 km SW of Akhiok, Alaska · 3065 days ago · 29 km deep · 90 km away
  7. 2.228 km ESE of Chignik, Alaska · 3065 days ago · 13 km deep · 99 km away
  8. 2.3118 km SE of Perryville, Alaska · 3065 days ago · 25 km deep · 65 km away
  9. 3.1114 km SE of Perryville, Alaska · 3068 days ago · 18 km deep · 58 km away
  10. 2.4118 km SE of Chignik, Alaska · 3071 days ago · 36 km deep · 18 km away
  11. 2.8121 km SE of Chignik, Alaska · 3077 days ago · 24 km deep · 3 km away
  12. 2.477 km SSE of Chignik, Alaska · 3085 days ago · 14 km deep · 51 km away
  13. 1.841 km E of Perryville, Alaska · 3086 days ago · 9 km deep · 99 km away
  14. 2.9153 km SW of Akhiok, Alaska · 3087 days ago · 37 km deep · 90 km away
  15. 2.538 km ESE of Chignik, Alaska · 3088 days ago · 80 km deep · 88 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event aacse0186chwd3d. Read Fri, Oct 2, 2026, 11:38 AM UTC.