Alaska earthquakes

M2.5 earthquake 206 km ESE of Atka, Alaska

A magnitude 2.5 earthquake struck 206 km ESE of Atka, Alaska on Wed, May 18, 2016, 8:14 AM HADT (17:14 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M3.7 174 km ESE of Atka, Alaska. This one was a foreshock.

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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
2016-05-18 17:14:40 UTC
Depth
25.5 km (15.8 mi), shallow
Epicenter
51.580° N, 171.369° 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.

Stations used
8

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 24 in the 30 days before it.

After

  1. 2.4138 km WSW of Nikolski, Alaska · 3791 days ago · 61 km deep · 97 km away
  2. 2.4167 km WSW of Nikolski, Alaska · 3781 days ago · 90 km deep · 91 km away
  3. 2.2109 km ESE of Atka, Alaska · 3775 days ago · 7 km deep · 98 km away
  4. 3.3145 km WSW of Nikolski, Alaska · 3774 days ago · 57 km deep · 88 km away
  5. 2.3184 km E of Atka, Alaska · 3773 days ago · 3 km deep · 78 km away
  6. 2.5154 km ESE of Atka, Alaska · 3762 days ago · 5 km deep · 61 km away
  7. 2.3141 km SW of Nikolski, Alaska · 3761 days ago · 16 km deep · 94 km away
  8. 2.8158 km E of Atka, Alaska · 3760 days ago · 49 km deep · 61 km away
  9. 3.6147 km ESE of Atka, Alaska · 3760 days ago · 31 km deep · 63 km away
  10. 2.5162 km E of Atka, Alaska · 3759 days ago · 26 km deep · 71 km away
  11. 3.7174 km ESE of Atka, Alaska · 3758 days ago · 35 km deep · 40 km away
  12. 2.4184 km E of Atka, Alaska · 3757 days ago · 34 km deep · 44 km away
  13. 2.4155 km SW of Nikolski, Alaska · 3752 days ago · 64 km deep · 75 km away
  14. 2.3142 km SW of Nikolski, Alaska · 3751 days ago · 20 km deep · 87 km away
  15. 2.0144 km SE of Atka, Alaska · 3751 days ago · 20 km deep · 81 km away
  16. 2.3193 km SW of Nikolski, Alaska · 3732 days ago · 49 km deep · 35 km away

Before

  1. 3.4136 km SW of Nikolski, Alaska · 3794 days ago · 34 km deep · 91 km away
  2. 2.7149 km SW of Nikolski, Alaska · 3798 days ago · 24 km deep · 79 km away
  3. 2.7169 km E of Atka, Alaska · 3801 days ago · 36 km deep · 75 km away
  4. 2.8178 km SW of Nikolski, Alaska · 3803 days ago · 41 km deep · 50 km away
  5. 2.6176 km SW of Nikolski, Alaska · 3803 days ago · 25 km deep · 51 km away
  6. 3.9189 km SW of Nikolski, Alaska · 3803 days ago · 33 km deep · 39 km away
  7. 4.3176 km SW of Nikolski, Alaska · 3803 days ago · 38 km deep · 54 km away
  8. 2.7158 km ESE of Atka, Alaska · 3804 days ago · 13 km deep · 62 km away
  9. 2.7188 km E of Atka, Alaska · 3805 days ago · 39 km deep · 72 km away
  10. 2.4166 km E of Atka, Alaska · 3805 days ago · 26 km deep · 51 km away
  11. 3.4185 km SW of Nikolski, Alaska · 3805 days ago · 23 km deep · 46 km away
  12. 3.4167 km WSW of Nikolski, Alaska · 3805 days ago · 41 km deep · 68 km away
  13. 2.7203 km ESE of Atka, Alaska · 3807 days ago · 34 km deep · 15 km away
  14. 2.8181 km WSW of Nikolski, Alaska · 3808 days ago · 58 km deep · 69 km away
  15. 3.1178 km WSW of Nikolski, Alaska · 3809 days ago · 26 km deep · 72 km away
  16. 2.7174 km WSW of Nikolski, Alaska · 3811 days ago · 60 km deep · 80 km away
  17. 3.6180 km WSW of Nikolski, Alaska · 3813 days ago · 36 km deep · 61 km away
  18. 2.7183 km SW of Nikolski, Alaska · 3813 days ago · 31 km deep · 50 km away
  19. 2.8165 km E of Atka, Alaska · 3814 days ago · 36 km deep · 72 km away
  20. 2.7177 km ESE of Atka, Alaska · 3814 days ago · 36 km deep · 37 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0166e5wp25 (also filed as ak13606589). Read Sun, Oct 4, 2026, 9:21 AM UTC.