Alaska earthquakes

M2.8 earthquake 150 km ESE of Chignik, Alaska

A magnitude 2.8 earthquake struck 150 km ESE of Chignik, Alaska on Fri, Mar 31, 2017, 9:04 AM AKDT (17:04 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M3.2 122 km WSW of Akhiok, 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
2.8 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2017-03-31 17:04:26 UTC
Depth
0.2 km (0.1 mi), shallow
Epicenter
55.590° N, 156.349° 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
2.8ML, local (Richter)Alaska Earthquake CenterPreferred · Preliminary
2.8ML, 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
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 21 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 2.3127 km E of Chignik, Alaska · 3473 days ago · 47 km deep · 80 km away
  2. 2.299 km SSE of Chignik, Alaska · 3466 days ago · 10 km deep · 82 km away
  3. 2.7138 km SW of Akhiok, Alaska · 3463 days ago · 22 km deep · 67 km away
  4. 2.0124 km E of Chignik, Alaska · 3461 days ago · 46 km deep · 80 km away
  5. 2.0130 km E of Chignik, Alaska · 3458 days ago · 25 km deep · 57 km away
  6. 2.8155 km SW of Akhiok, Alaska · 3457 days ago · 33 km deep · 47 km away
  7. 2.6151 km SW of Akhiok, Alaska · 3457 days ago · 19 km deep · 52 km away
  8. 2.5151 km SW of Akhiok, Alaska · 3457 days ago · 20 km deep · 52 km away
  9. 1.8141 km ESE of Chignik, Alaska · 3456 days ago · 77 km deep · 46 km away
  10. 1.885 km E of Chignik, Alaska · 3455 days ago · 39 km deep · 97 km away
  11. 2.485 km ESE of Perryville, Alaska · 3455 days ago · 12 km deep · 100 km away
  12. 1.9125 km E of Chignik, Alaska · 3446 days ago · 72 km deep · 72 km away
  13. 2.0143 km E of Chignik, Alaska · 3446 days ago · 27 km deep · 62 km away
  14. 2.4126 km E of Chignik, Alaska · 3443 days ago · 46 km deep · 56 km away
  15. 2.4108 km E of Chignik, Alaska · 3440 days ago · 24 km deep · 79 km away
  16. 2.9126 km SE of Chignik, Alaska · 3437 days ago · 4 km deep · 39 km away
  17. 2.6118 km ESE of Chignik, Alaska · 3435 days ago · 44 km deep · 42 km away
  18. 2.589 km E of Chignik, Alaska · 3435 days ago · 11 km deep · 93 km away
  19. 2.2122 km SE of Chignik, Alaska · 3434 days ago · 20 km deep · 47 km away
  20. 3.2122 km WSW of Akhiok, Alaska · 3416 days ago · 62 km deep · 92 km away
  21. 2.780 km ESE of Chignik, Alaska · 3415 days ago · 8 km deep · 70 km away

Before

  1. 2.363 km SE of Chignik, Alaska · 3475 days ago · 63 km deep · 96 km away
  2. 4.5Alaska Peninsula · 3476 days ago · 46 km deep · 81 km away · felt by 1
  3. 2.457 km ESE of Chignik, Alaska · 3485 days ago · 39 km deep · 98 km away
  4. 2.171 km SE of Chignik, Alaska · 3492 days ago · 1 km deep · 91 km away
  5. 1.955 km ESE of Chignik, Alaska · 3493 days ago · 38 km deep · 94 km away
  6. 2.5south of Alaska · 3497 days ago · 28 km deep · 46 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak017454iimd (also filed as ak15652147, us10008dnd). Read Sat, Oct 3, 2026, 3:07 PM UTC.