Alaska earthquakes

M3.1 earthquake 196 km SW of Nikolski, Alaska

A magnitude 3.1 earthquake struck 196 km SW of Nikolski, Alaska on Sun, Aug 11, 2024, 12:22 PM HADT (21:22 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.0 174 km SW of Nikolski, 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
3.1 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2024-08-11 21:22:38 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
51.795° N, 171.069° W
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
3.1ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.091 · 16 stations
3.0ML, 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 5.6 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.09
Depth from
Operator assigned
Station coverage gap
221°, poorly surrounded by stations
Stations used
17

Nearby

Within 100 km, magnitude 1.5 and up: 30 in the 60 days after this one and 50 in the 30 days before it.

After

  1. 3.6132 km SW of Nikolski, Alaska · 782 days ago · 35 km deep · 66 km away
  2. 2.5238 km ESE of Atka, Alaska · 782 days ago · 10 km deep · 73 km away
  3. 2.1135 km ESE of Atka, Alaska · 781 days ago · 28 km deep · 85 km away
  4. 3.2173 km E of Atka, Alaska · 781 days ago · 32 km deep · 51 km away
  5. 2.8126 km SW of Nikolski, Alaska · 780 days ago · 35 km deep · 72 km away
  6. 3.1151 km SW of Nikolski, Alaska · 779 days ago · 62 km deep · 48 km away
  7. 3.4176 km WSW of Nikolski, Alaska · 777 days ago · 35 km deep · 34 km away
  8. 3.0103 km SW of Nikolski, Alaska · 774 days ago · 30 km deep · 95 km away
  9. 3.7234 km SW of Nikolski, Alaska · 772 days ago · 10 km deep · 67 km away
  10. 3.1120 km ESE of Atka, Alaska · 768 days ago · 10 km deep · 99 km away
  11. 2.9125 km SW of Nikolski, Alaska · 764 days ago · 35 km deep · 71 km away
  12. 3.2188 km SW of Nikolski, Alaska · 761 days ago · 35 km deep · 17 km away
  13. 4.0155 km ESE of Atka, Alaska · 760 days ago · 35 km deep · 67 km away
  14. 2.2114 km SW of Nikolski, Alaska · 760 days ago · 5 km deep · 84 km away
  15. 3.2168 km SW of Nikolski, Alaska · 759 days ago · 35 km deep · 29 km away
  16. 3.0139 km E of Atka, Alaska · 757 days ago · 61 km deep · 88 km away
  17. 2.9191 km ESE of Atka, Alaska · 756 days ago · 35 km deep · 28 km away
  18. 3.6176 km WSW of Nikolski, Alaska · 754 days ago · 15 km deep · 67 km away
  19. 2.3169 km WSW of Nikolski, Alaska · 753 days ago · 62 km deep · 75 km away
  20. 2.8170 km SW of Nikolski, Alaska · 749 days ago · 35 km deep · 26 km away
  21. 3.8229 km SW of Nikolski, Alaska · 748 days ago · 10 km deep · 49 km away
  22. 2.9129 km SW of Nikolski, Alaska · 746 days ago · 53 km deep · 70 km away
  23. 3.1173 km ESE of Atka, Alaska · 745 days ago · 10 km deep · 78 km away
  24. 3.5192 km ESE of Atka, Alaska · 744 days ago · 35 km deep · 28 km away
  25. 3.6136 km WSW of Nikolski, Alaska · 743 days ago · 35 km deep · 78 km away
  26. 2.9115 km SW of Nikolski, Alaska · 743 days ago · 35 km deep · 81 km away
  27. 3.1173 km E of Atka, Alaska · 740 days ago · 90 km deep · 84 km away
  28. 2.8171 km WSW of Nikolski, Alaska · 739 days ago · 64 km deep · 39 km away
  29. 2.9165 km SSW of Nikolski, Alaska · 725 days ago · 10 km deep · 78 km away
  30. 5.0174 km SW of Nikolski, Alaska · 724 days ago · 35 km deep · 23 km away · tsunami flag

Before

  1. 2.7118 km SW of Nikolski, Alaska · 786 days ago · 35 km deep · 80 km away
  2. 3.0171 km SW of Nikolski, Alaska · 787 days ago · 10 km deep · 27 km away
  3. 2.9129 km SW of Nikolski, Alaska · 792 days ago · 35 km deep · 70 km away
  4. 2.9142 km SW of Nikolski, Alaska · 794 days ago · 10 km deep · 71 km away
  5. 3.6174 km SW of Nikolski, Alaska · 795 days ago · 35 km deep · 29 km away
  6. 3.1167 km SW of Nikolski, Alaska · 798 days ago · 35 km deep · 30 km away
  7. 3.9217 km SSW of Nikolski, Alaska · 798 days ago · 10 km deep · 79 km away
  8. 2.7186 km WSW of Nikolski, Alaska · 798 days ago · 35 km deep · 32 km away
  9. 2.7167 km SW of Nikolski, Alaska · 799 days ago · 35 km deep · 30 km away
  10. 2.1130 km SW of Nikolski, Alaska · 800 days ago · 87 km deep · 66 km away
  11. 3.2148 km WSW of Nikolski, Alaska · 802 days ago · 67 km deep · 63 km away
  12. 2.4163 km E of Atka, Alaska · 802 days ago · 51 km deep · 60 km away
  13. 2.998 km SW of Nikolski, Alaska · 802 days ago · 34 km deep · 98 km away
  14. 3.3174 km SW of Nikolski, Alaska · 804 days ago · 35 km deep · 28 km away
  15. 3.3159 km SW of Nikolski, Alaska · 805 days ago · 75 km deep · 41 km away
  16. 3.1134 km SW of Nikolski, Alaska · 805 days ago · 35 km deep · 63 km away
  17. 2.2157 km SW of Nikolski, Alaska · 806 days ago · 30 km deep · 40 km away
  18. 2.8164 km SW of Nikolski, Alaska · 806 days ago · 35 km deep · 35 km away
  19. 2.3157 km SW of Nikolski, Alaska · 806 days ago · 25 km deep · 41 km away
  20. 2.3157 km SW of Nikolski, Alaska · 806 days ago · 26 km deep · 39 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000nt6e (also filed as ak024aat0nee). Read Sat, Oct 3, 2026, 5:11 AM UTC.