Alaska earthquakes

M2.9 earthquake 148 km W of Nikolski, Alaska

A magnitude 2.9 earthquake struck 148 km W of Nikolski, Alaska on Thu, May 17, 2018, 11:12 PM HADT (08:12 UTC), 26 km (16 mi) below the surface.

A larger quake followed: M4.3 169 km E 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
2.9 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2018-05-18 08:12:41 UTC
Depth
25.8 km (16.1 mi), shallow
Epicenter
52.999° N, 171.063° 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.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 6.8 km horizontally, 13.5 km in depth
Depth from
From location
Station coverage gap
168°
Stations used
22

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 1.981 km SW of Nikolski, Alaska · 3057 days ago · 31 km deep · 99 km away
  2. 4.3169 km E of Atka, Alaska · 3045 days ago · 10 km deep · 78 km away
  3. 4.1168 km E of Atka, Alaska · 3045 days ago · 10 km deep · 77 km away
  4. 3.3175 km E of Atka, Alaska · 3044 days ago · 11 km deep · 88 km away
  5. 1.749 km W of Nikolski, Alaska · 3043 days ago · -3 km deep · 100 km away
  6. 2.4Fox Islands, Aleutian Islands, Alaska · 3035 days ago · 109 km deep · 86 km away
  7. 3.0127 km WSW of Nikolski, Alaska · 3034 days ago · 11 km deep · 83 km away
  8. 4.172 km WNW of Nikolski, Alaska · 3031 days ago · 154 km deep · 85 km away
  9. 2.9175 km E of Atka, Alaska · 3031 days ago · 21 km deep · 95 km away
  10. 3.2155 km WNW of Nikolski, Alaska · 3031 days ago · 186 km deep · 38 km away
  11. 1.655 km W of Nikolski, Alaska · 3022 days ago · 11 km deep · 95 km away
  12. 2.9178 km WSW of Nikolski, Alaska · 3022 days ago · 21 km deep · 100 km away
  13. 2.8150 km SW of Nikolski, Alaska · 3020 days ago · 35 km deep · 94 km away
  14. 3.0142 km SW of Nikolski, Alaska · 3010 days ago · 98 km deep · 100 km away
  15. 3.6111 km WSW of Nikolski, Alaska · 3002 days ago · 129 km deep · 73 km away
  16. 3.9134 km SW of Nikolski, Alaska · 3002 days ago · 35 km deep · 96 km away
  17. 3.6182 km E of Atka, Alaska · 3001 days ago · 32 km deep · 74 km away
  18. 3.0178 km WSW of Nikolski, Alaska · 2999 days ago · 35 km deep · 96 km away

Before

  1. 2.5150 km WSW of Nikolski, Alaska · 3061 days ago · 105 km deep · 74 km away
  2. 2.5145 km WSW of Nikolski, Alaska · 3063 days ago · 33 km deep · 81 km away
  3. 2.585 km W of Nikolski, Alaska · 3065 days ago · 230 km deep · 64 km away
  4. 2.5164 km WNW of Nikolski, Alaska · 3065 days ago · 181 km deep · 74 km away
  5. 2.7147 km WSW of Nikolski, Alaska · 3086 days ago · 68 km deep · 75 km away
  6. 2.152 km WSW of Nikolski, Alaska · 3087 days ago · 7 km deep · 99 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000eaa1. Read Thu, Oct 1, 2026, 10:19 AM UTC.