Alaska earthquakes

M4.3 earthquake 266 km W of Adak, Alaska

A magnitude 4.3 earthquake struck 266 km W of Adak, Alaska on Wed, Feb 13, 2019, 7:09 PM GMT+12 (07:09 UTC), 70 km (43 mi) below the surface.

A larger quake followed: M4.8 293 km WSW of Adak, 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
4.3 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2019-02-13 07:09:11 UTC
Depth
69.8 km (43.4 mi), shallow
Epicenter
51.586° N, 179.537° E
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
4.3mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed · ±0.056 · 89 stations
4.1ML, local (Richter)Alaska Earthquake CenterPreliminary

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 10.0 km horizontally, 10.3 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
207°, poorly surrounded by stations
Stations used
64

Nearby

Within 100 km, magnitude 1.5 and up: 26 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 3.8208 km W of Adak, Alaska · 2786 days ago · 156 km deep · 77 km away
  2. 4.8293 km WSW of Adak, Alaska · 2783 days ago · 35 km deep · 53 km away
  3. 4.8232 km W of Adak, Alaska · 2783 days ago · 183 km deep · 35 km away
  4. 2.7226 km W of Adak, Alaska · 2773 days ago · 72 km deep · 70 km away
  5. 3.0171 km WSW of Adak, Alaska · 2772 days ago · 35 km deep · 96 km away
  6. 3.9Rat Islands, Aleutian Islands, Alaska · 2766 days ago · 94 km deep · 84 km away
  7. 3.0187 km WSW of Adak, Alaska · 2765 days ago · 35 km deep · 89 km away
  8. 2.8255 km W of Adak, Alaska · 2759 days ago · 24 km deep · 11 km away
  9. 2.3202 km W of Adak, Alaska · 2758 days ago · 17 km deep · 63 km away
  10. 4.6Rat Islands, Aleutian Islands, Alaska · 2748 days ago · 98 km deep · 84 km away
  11. 3.2220 km WSW of Adak, Alaska · 2747 days ago · 28 km deep · 99 km away
  12. 2.2194 km W of Adak, Alaska · 2746 days ago · 80 km deep · 77 km away
  13. 3.3257 km W of Adak, Alaska · 2745 days ago · 10 km deep · 24 km away
  14. 2.6226 km WSW of Adak, Alaska · 2745 days ago · 35 km deep · 58 km away
  15. 3.8Rat Islands, Aleutian Islands, Alaska · 2745 days ago · 104 km deep · 76 km away
  16. 3.1283 km WSW of Adak, Alaska · 2744 days ago · 25 km deep · 63 km away
  17. 3.9Rat Islands, Aleutian Islands, Alaska · 2739 days ago · 115 km deep · 85 km away
  18. 4.2Rat Islands, Aleutian Islands, Alaska · 2739 days ago · 10 km deep · 99 km away
  19. 4.1271 km WSW of Adak, Alaska · 2738 days ago · 158 km deep · 29 km away
  20. 3.3252 km W of Adak, Alaska · 2738 days ago · 125 km deep · 82 km away
  21. 2.8293 km W of Adak, Alaska · 2737 days ago · 20 km deep · 68 km away
  22. 3.8220 km WSW of Adak, Alaska · 2735 days ago · 10 km deep · 95 km away
  23. 2.1183 km WSW of Adak, Alaska · 2733 days ago · 33 km deep · 90 km away
  24. 3.8Rat Islands, Aleutian Islands, Alaska · 2732 days ago · 106 km deep · 77 km away
  25. 2.4184 km WSW of Adak, Alaska · 2731 days ago · 37 km deep · 87 km away
  26. 2.7175 km W of Adak, Alaska · 2728 days ago · 86 km deep · 91 km away

Before

  1. 4.0Rat Islands, Aleutian Islands, Alaska · 2788 days ago · 136 km deep · 94 km away
  2. 2.9244 km WSW of Adak, Alaska · 2789 days ago · 11 km deep · 64 km away
  3. 2.4212 km W of Adak, Alaska · 2792 days ago · 80 km deep · 53 km away
  4. 4.0Rat Islands, Aleutian Islands, Alaska · 2793 days ago · 127 km deep · 92 km away
  5. 2.8201 km W of Adak, Alaska · 2796 days ago · 110 km deep · 78 km away
  6. 2.9272 km W of Adak, Alaska · 2802 days ago · 71 km deep · 11 km away
  7. 3.8Rat Islands, Aleutian Islands, Alaska · 2804 days ago · 22 km deep · 73 km away
  8. 3.1235 km W of Adak, Alaska · 2812 days ago · 103 km deep · 32 km away
  9. 1.9175 km WSW of Adak, Alaska · 2814 days ago · 39 km deep · 98 km away
  10. 2.7Rat Islands, Aleutian Islands, Alaska · 2814 days ago · 60 km deep · 96 km away
  11. 2.5Rat Islands, Aleutian Islands, Alaska · 2815 days ago · 10 km deep · 97 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000jh3s (also filed as ak01920vvad9). Read Fri, Oct 2, 2026, 1:36 AM UTC.