Alaska earthquakes

M2.6 earthquake 118 km SSE of Chignik, Alaska

A magnitude 2.6 earthquake struck 118 km SSE of Chignik, Alaska on Tue, Apr 17, 2018, 5:20 PM AKDT (01:20 UTC), 25 km (15 mi) below the surface.

A larger quake followed: M3.1 114 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
2.6 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2018-04-18 01:20:54 UTC
Depth
24.6 km (15.3 mi), shallow
Epicenter
55.380° N, 157.424° 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
2.6ML, local (Richter)USGS National Earthquake Information CenterReviewed

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
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 32 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 2.538 km ESE of Chignik, Alaska · 3088 days ago · 80 km deep · 89 km away
  2. 2.029 km E of Perryville, Alaska · 3087 days ago · 19 km deep · 96 km away
  3. 1.841 km E of Perryville, Alaska · 3086 days ago · 9 km deep · 85 km away
  4. 2.477 km SSE of Chignik, Alaska · 3084 days ago · 14 km deep · 42 km away
  5. 2.888 km SSE of Perryville, Alaska · 3082 days ago · 33 km deep · 90 km away
  6. 2.334 km S of Chignik, Alaska · 3081 days ago · 54 km deep · 91 km away
  7. 2.8121 km SE of Chignik, Alaska · 3076 days ago · 24 km deep · 29 km away
  8. 2.4118 km SE of Chignik, Alaska · 3070 days ago · 36 km deep · 44 km away
  9. 3.1114 km SE of Perryville, Alaska · 3067 days ago · 18 km deep · 30 km away
  10. 2.3118 km SE of Perryville, Alaska · 3065 days ago · 25 km deep · 38 km away
  11. 2.228 km ESE of Chignik, Alaska · 3064 days ago · 13 km deep · 99 km away
  12. 2.229 km ESE of Perryville, Alaska · 3064 days ago · 80 km deep · 95 km away
  13. 1.538 km SE of Perryville, Alaska · 3063 days ago · 50 km deep · 90 km away
  14. 2.7191 km SE of Chignik, Alaska · 3062 days ago · 20 km deep · 74 km away
  15. 1.8135 km SE of Chignik, Alaska · 3062 days ago · 9 km deep · 26 km away
  16. 1.631 km SE of Perryville, Alaska · 3061 days ago · 49 km deep · 95 km away
  17. 2.742 km E of Perryville, Alaska · 3060 days ago · 62 km deep · 86 km away
  18. 2.754 km ESE of Perryville, Alaska · 3060 days ago · 18 km deep · 70 km away
  19. 2.5123 km SE of Chignik, Alaska · 3058 days ago · 23 km deep · 28 km away
  20. 1.972 km SSE of Perryville, Alaska · 3057 days ago · 7 km deep · 85 km away
  21. 2.8127 km SE of Chignik, Alaska · 3055 days ago · 16 km deep · 28 km away
  22. 2.052 km SE of Perryville, Alaska · 3054 days ago · 19 km deep · 77 km away
  23. 2.774 km SSE of Perryville, Alaska · 3052 days ago · 38 km deep · 92 km away
  24. 2.769 km SSE of Perryville, Alaska · 3049 days ago · 45 km deep · 71 km away
  25. 2.6204 km SE of Perryville, Alaska · 3049 days ago · 46 km deep · 91 km away
  26. 2.7100 km ESE of Chignik, Alaska · 3048 days ago · 43 km deep · 85 km away
  27. 2.6141 km ESE of Chignik, Alaska · 3048 days ago · 55 km deep · 83 km away
  28. 2.639 km S of Chignik, Alaska · 3048 days ago · 60 km deep · 85 km away
  29. 2.966 km SE of Chignik, Alaska · 3047 days ago · 0 km deep · 53 km away
  30. 2.378 km ESE of Chignik, Alaska · 3044 days ago · 17 km deep · 70 km away
  31. 2.472 km SE of Perryville, Alaska · 3043 days ago · 41 km deep · 65 km away
  32. 2.6132 km SSE of Perryville, Alaska · 3039 days ago · 33 km deep · 71 km away

Before

  1. 2.360 km E of Chignik, Alaska · 3094 days ago · 46 km deep · 97 km away
  2. 2.3140 km ESE of Chignik, Alaska · 3102 days ago · 59 km deep · 66 km away
  3. 2.7130 km SSE of Perryville, Alaska · 3104 days ago · 11 km deep · 79 km away
  4. 3.737 km ESE of Perryville, Alaska · 3105 days ago · 47 km deep · 86 km away
  5. 1.966 km ESE of Chignik, Alaska · 3107 days ago · 49 km deep · 82 km away
  6. 2.8202 km SE of Perryville, Alaska · 3109 days ago · 29 km deep · 88 km away
  7. 2.564 km SSE of Chignik, Alaska · 3110 days ago · 64 km deep · 57 km away
  8. 2.646 km SE of Chignik, Alaska · 3113 days ago · 56 km deep · 75 km away
  9. 2.453 km SSE of Chignik, Alaska · 3113 days ago · 45 km deep · 66 km away
  10. 2.144 km SE of Perryville, Alaska · 3114 days ago · 45 km deep · 81 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0184ymrbg2 (also filed as ak19248005, us1000dpqx). Read Fri, Oct 2, 2026, 3:09 AM UTC.