Alaska earthquakes

M2.5 earthquake 112 km SE of Chignik, Alaska

A magnitude 2.5 earthquake struck 112 km SE of Chignik, Alaska on Wed, Mar 14, 2018, 11:47 PM AKDT (07:47 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.7 37 km ESE 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
2.5 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2018-03-15 07:47:05 UTC
Depth
6.7 km (4.2 mi), shallow
Epicenter
55.551° N, 157.192° 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
2.5ML, 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
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 27 in the 60 days after this one and 19 in the 30 days before it.

After

  1. 2.180 km E of Chignik, Alaska · 3123 days ago · 42 km deep · 93 km away
  2. 2.1116 km E of Chignik, Alaska · 3123 days ago · 51 km deep · 77 km away
  3. 2.4130 km SE of Chignik, Alaska · 3121 days ago · 14 km deep · 19 km away
  4. 2.144 km SE of Perryville, Alaska · 3114 days ago · 45 km deep · 91 km away
  5. 2.453 km SSE of Chignik, Alaska · 3113 days ago · 45 km deep · 65 km away
  6. 2.646 km SE of Chignik, Alaska · 3113 days ago · 56 km deep · 66 km away
  7. 2.564 km SSE of Chignik, Alaska · 3111 days ago · 64 km deep · 57 km away
  8. 1.966 km ESE of Chignik, Alaska · 3107 days ago · 49 km deep · 64 km away
  9. 3.737 km ESE of Perryville, Alaska · 3105 days ago · 47 km deep · 93 km away
  10. 2.3140 km ESE of Chignik, Alaska · 3102 days ago · 59 km deep · 46 km away
  11. 2.7133 km E of Chignik, Alaska · 3099 days ago · 61 km deep · 82 km away
  12. 2.360 km E of Chignik, Alaska · 3094 days ago · 46 km deep · 79 km away
  13. 2.6118 km SSE of Chignik, Alaska · 3089 days ago · 25 km deep · 24 km away
  14. 2.538 km ESE of Chignik, Alaska · 3088 days ago · 80 km deep · 78 km away
  15. 2.029 km E of Perryville, Alaska · 3087 days ago · 19 km deep · 100 km away
  16. 2.9153 km SW of Akhiok, Alaska · 3087 days ago · 37 km deep · 96 km away
  17. 1.841 km E of Perryville, Alaska · 3086 days ago · 9 km deep · 87 km away
  18. 2.477 km SSE of Chignik, Alaska · 3084 days ago · 14 km deep · 39 km away
  19. 2.334 km S of Chignik, Alaska · 3081 days ago · 54 km deep · 89 km away
  20. 2.8121 km SE of Chignik, Alaska · 3076 days ago · 24 km deep · 10 km away
  21. 2.4118 km SE of Chignik, Alaska · 3070 days ago · 36 km deep · 21 km away
  22. 3.1114 km SE of Perryville, Alaska · 3068 days ago · 18 km deep · 54 km away
  23. 2.3118 km SE of Perryville, Alaska · 3065 days ago · 25 km deep · 62 km away
  24. 2.228 km ESE of Chignik, Alaska · 3065 days ago · 13 km deep · 88 km away
  25. 2.5158 km SW of Akhiok, Alaska · 3064 days ago · 29 km deep · 97 km away
  26. 2.229 km ESE of Perryville, Alaska · 3064 days ago · 80 km deep · 99 km away
  27. 1.538 km SE of Perryville, Alaska · 3063 days ago · 50 km deep · 100 km away

Before

  1. 2.787 km ESE of Chignik, Alaska · 3125 days ago · 7 km deep · 37 km away
  2. 2.279 km ESE of Chignik, Alaska · 3125 days ago · 17 km deep · 41 km away
  3. 3.4103 km ESE of Chignik, Alaska · 3125 days ago · 11 km deep · 32 km away
  4. 3.8113 km SE of Chignik, Alaska · 3132 days ago · 24 km deep · 2 km away
  5. 2.095 km E of Chignik, Alaska · 3133 days ago · 21 km deep · 83 km away
  6. 3.6136 km SE of Chignik, Alaska · 3133 days ago · 37 km deep · 27 km away
  7. 3.954 km SSE of Chignik, Alaska · 3134 days ago · 45 km deep · 64 km away
  8. 3.4134 km SSE of Chignik, Alaska · 3135 days ago · 3 km deep · 29 km away
  9. 3.8130 km SSE of Chignik, Alaska · 3135 days ago · 26 km deep · 28 km away
  10. 3.251 km SSE of Perryville, Alaska · 3136 days ago · 5 km deep · 98 km away
  11. 2.839 km SSE of Chignik, Alaska · 3138 days ago · 45 km deep · 75 km away
  12. 3.0119 km SE of Chignik, Alaska · 3138 days ago · 27 km deep · 14 km away
  13. 2.772 km E of Chignik, Alaska · 3139 days ago · 46 km deep · 90 km away
  14. 3.3134 km SSE of Chignik, Alaska · 3142 days ago · 34 km deep · 31 km away
  15. 1.843 km SE of Perryville, Alaska · 3143 days ago · 26 km deep · 95 km away
  16. 1.942 km SE of Perryville, Alaska · 3143 days ago · 19 km deep · 97 km away
  17. 3.6134 km SSE of Chignik, Alaska · 3143 days ago · 20 km deep · 34 km away
  18. 4.4132 km SSE of Chignik, Alaska · 3143 days ago · 20 km deep · 31 km away
  19. 2.838 km SE of Chignik, Alaska · 3151 days ago · 39 km deep · 75 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0183ei7stm (also filed as ak18723667, us1000d79e). Read Fri, Oct 2, 2026, 4:37 AM UTC.