Alaska earthquakes

M2.5 earthquake 11 km S of Akhiok, Alaska

A magnitude 2.5 earthquake struck 11 km S of Akhiok, Alaska on Wed, Apr 20, 2016, 12:44 PM AKDT (20:44 UTC), 46 km (29 mi) below the surface.

A larger quake followed: M3.5 Kodiak Island region, 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
USGS National Earthquake Information Center
Local time
UTC
2016-04-20 20:44:17 UTC
Depth
46.2 km (28.7 mi), shallow
Epicenter
56.842° N, 154.142° 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.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 7.5 km horizontally, 9.0 km in depth
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 2.418 km SW of Larsen Bay, Alaska · 3818 days ago · 44 km deep · 63 km away
  2. 1.821 km NE of Akhiok, Alaska · 3818 days ago · 12 km deep · 30 km away
  3. 3.5Kodiak Island region, Alaska · 3816 days ago · 58 km deep · 88 km away
  4. 2.065 km WSW of Karluk, Alaska · 3815 days ago · 65 km deep · 88 km away
  5. 1.834 km WSW of Karluk, Alaska · 3814 days ago · 72 km deep · 82 km away
  6. 1.937 km SSW of Karluk, Alaska · 3807 days ago · 72 km deep · 60 km away
  7. 1.923 km WSW of Old Harbor, Alaska · 3807 days ago · 39 km deep · 43 km away
  8. 2.418 km SSW of Karluk, Alaska · 3805 days ago · 59 km deep · 67 km away
  9. 1.824 km SE of Larsen Bay, Alaska · 3805 days ago · 46 km deep · 71 km away
  10. 2.776 km SSW of Akhiok, Alaska · 3804 days ago · 41 km deep · 68 km away
  11. 1.634 km NNW of Akhiok, Alaska · 3801 days ago · 54 km deep · 46 km away
  12. 1.615 km WNW of Larsen Bay, Alaska · 3797 days ago · 47 km deep · 84 km away
  13. 2.250 km WNW of Akhiok, Alaska · 3792 days ago · 45 km deep · 57 km away
  14. 2.918 km SW of Karluk, Alaska · 3789 days ago · 40 km deep · 78 km away
  15. 2.256 km WNW of Akhiok, Alaska · 3785 days ago · 54 km deep · 63 km away
  16. 1.741 km WSW of Akhiok, Alaska · 3783 days ago · 55 km deep · 42 km away
  17. 2.660 km SW of Akhiok, Alaska · 3781 days ago · 27 km deep · 53 km away
  18. 1.984 km W of Akhiok, Alaska · 3781 days ago · 78 km deep · 88 km away
  19. 2.032 km SSW of Karluk, Alaska · 3779 days ago · 65 km deep · 64 km away
  20. 2.018 km N of Old Harbor, Alaska · 3778 days ago · 33 km deep · 79 km away
  21. 2.155 km WSW of Karluk, Alaska · 3773 days ago · 78 km deep · 88 km away
  22. 2.243 km WNW of Akhiok, Alaska · 3767 days ago · 58 km deep · 51 km away
  23. 1.831 km SW of Karluk, Alaska · 3763 days ago · 41 km deep · 77 km away

Before

  1. 2.19 km WNW of Karluk, Alaska · 3819 days ago · 19 km deep · 89 km away
  2. 1.64 km N of Karluk, Alaska · 3825 days ago · 51 km deep · 88 km away
  3. 2.240 km SSW of Karluk, Alaska · 3830 days ago · 35 km deep · 61 km away
  4. 2.40 km NNE of Larsen Bay, Alaska · 3830 days ago · 61 km deep · 79 km away
  5. 1.756 km WSW of Karluk, Alaska · 3831 days ago · 67 km deep · 86 km away
  6. 2.125 km SSW of Akhiok, Alaska · 3833 days ago · 41 km deep · 17 km away
  7. 1.727 km SSW of Karluk, Alaska · 3834 days ago · 47 km deep · 59 km away
  8. 1.833 km SSW of Akhiok, Alaska · 3836 days ago · 53 km deep · 24 km away
  9. 2.021 km SSW of Karluk, Alaska · 3837 days ago · 59 km deep · 65 km away
  10. 2.573 km WNW of Akhiok, Alaska · 3844 days ago · 60 km deep · 78 km away
  11. 2.168 km WSW of Akhiok, Alaska · 3849 days ago · 57 km deep · 68 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20005kcq (also filed as ak13488236). Read Sun, Oct 4, 2026, 4:40 PM UTC.