Alaska earthquakes

M4.1 earthquake 271 km WSW of Adak, Alaska

A magnitude 4.1 earthquake struck 271 km WSW of Adak, Alaska on Thu, Apr 4, 2019, 1:27 PM GMT+12 (01:27 UTC), 158 km (98 mi) below the surface.

A larger quake followed: M4.2 204 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
4.1 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2019-04-04 01:27:54 UTC
Depth
158.2 km (98.3 mi), intermediate-depth
Epicenter
51.325° N, 179.544° E
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 11.1 km horizontally, 10.3 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
156°
Stations used
46

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 2.8293 km W of Adak, Alaska · 2737 days ago · 20 km deep · 95 km away
  2. 3.8220 km WSW of Adak, Alaska · 2735 days ago · 10 km deep · 78 km away
  3. 2.1183 km WSW of Adak, Alaska · 2733 days ago · 33 km deep · 89 km away
  4. 3.8Rat Islands, Aleutian Islands, Alaska · 2732 days ago · 106 km deep · 86 km away
  5. 2.4184 km WSW of Adak, Alaska · 2731 days ago · 37 km deep · 87 km away
  6. 2.8192 km WSW of Adak, Alaska · 2726 days ago · 57 km deep · 79 km away
  7. 2.4180 km W of Adak, Alaska · 2726 days ago · 42 km deep · 92 km away
  8. 4.2204 km WSW of Adak, Alaska · 2725 days ago · 35 km deep · 85 km away
  9. 2.2175 km WSW of Adak, Alaska · 2721 days ago · 52 km deep · 96 km away
  10. 2.6232 km WSW of Adak, Alaska · 2720 days ago · 16 km deep · 64 km away
  11. 3.1225 km W of Adak, Alaska · 2719 days ago · 55 km deep · 67 km away
  12. 2.8186 km WSW of Adak, Alaska · 2717 days ago · 50 km deep · 85 km away
  13. 3.9266 km W of Adak, Alaska · 2713 days ago · 71 km deep · 58 km away
  14. 2.3279 km W of Adak, Alaska · 2697 days ago · 59 km deep · 95 km away
  15. 3.0Rat Islands, Aleutian Islands, Alaska · 2697 days ago · 35 km deep · 84 km away
  16. 3.8Rat Islands, Aleutian Islands, Alaska · 2695 days ago · 10 km deep · 82 km away
  17. 2.4206 km W of Adak, Alaska · 2693 days ago · 149 km deep · 66 km away
  18. 3.6267 km W of Adak, Alaska · 2693 days ago · 60 km deep · 76 km away
  19. 2.7260 km WSW of Adak, Alaska · 2692 days ago · 30 km deep · 11 km away
  20. 2.5223 km WSW of Adak, Alaska · 2687 days ago · 35 km deep · 59 km away
  21. 2.3192 km W of Adak, Alaska · 2682 days ago · 57 km deep · 80 km away
  22. 2.3242 km W of Adak, Alaska · 2681 days ago · 37 km deep · 35 km away
  23. 2.9Rat Islands, Aleutian Islands, Alaska · 2680 days ago · 10 km deep · 88 km away

Before

  1. 3.9Rat Islands, Aleutian Islands, Alaska · 2740 days ago · 115 km deep · 94 km away
  2. 3.1283 km WSW of Adak, Alaska · 2744 days ago · 25 km deep · 34 km away
  3. 3.8Rat Islands, Aleutian Islands, Alaska · 2745 days ago · 104 km deep · 89 km away
  4. 2.6226 km WSW of Adak, Alaska · 2745 days ago · 35 km deep · 48 km away
  5. 3.3257 km W of Adak, Alaska · 2745 days ago · 10 km deep · 53 km away
  6. 2.2194 km W of Adak, Alaska · 2746 days ago · 80 km deep · 94 km away
  7. 3.2220 km WSW of Adak, Alaska · 2747 days ago · 28 km deep · 81 km away
  8. 3.8Rat Islands, Aleutian Islands, Alaska · 2755 days ago · 57 km deep · 95 km away
  9. 2.3202 km W of Adak, Alaska · 2758 days ago · 17 km deep · 73 km away
  10. 2.8255 km W of Adak, Alaska · 2759 days ago · 24 km deep · 32 km away
  11. 3.7Rat Islands, Aleutian Islands, Alaska · 2764 days ago · 23 km deep · 88 km away
  12. 3.0187 km WSW of Adak, Alaska · 2765 days ago · 35 km deep · 86 km away
  13. 3.9Rat Islands, Aleutian Islands, Alaska · 2766 days ago · 94 km deep · 95 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us700034v0. Read Fri, Oct 2, 2026, 2:58 AM UTC.