Alaska earthquakes

M2.4 earthquake 145 km ESE of Atka, Alaska

A magnitude 2.4 earthquake struck 145 km ESE of Atka, Alaska on Sun, Sep 4, 2022, 1:27 PM HADT (22:27 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M4.0 87 km SSE of Atka, Alaska. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.4 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2022-09-04 22:27:40 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
51.660° N, 172.268° 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
2.4ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.148 · 6 stations
2.5ML, 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 9.1 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.15
Depth from
Operator assigned
Station coverage gap
220°, poorly surrounded by stations
Stations used
13

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 28 in the 30 days before it.

After

  1. 3.590 km SE of Atka, Alaska · 1488 days ago · 36 km deep · 72 km away
  2. 3.2102 km SE of Atka, Alaska · 1488 days ago · 35 km deep · 62 km away
  3. 2.862 km ESE of Atka, Alaska · 1488 days ago · 65 km deep · 84 km away
  4. 2.7133 km E of Atka, Alaska · 1486 days ago · 62 km deep · 37 km away
  5. 3.0125 km ESE of Atka, Alaska · 1485 days ago · 35 km deep · 21 km away
  6. 3.4Andreanof Islands, Aleutian Islands, Alaska · 1483 days ago · 35 km deep · 31 km away
  7. 3.3169 km SE of Atka, Alaska · 1482 days ago · 35 km deep · 40 km away
  8. 2.7144 km SE of Atka, Alaska · 1479 days ago · 10 km deep · 59 km away
  9. 2.488 km E of Atka, Alaska · 1479 days ago · 150 km deep · 72 km away
  10. 3.781 km SSE of Atka, Alaska · 1478 days ago · 45 km deep · 91 km away
  11. 4.087 km SSE of Atka, Alaska · 1473 days ago · 38 km deep · 89 km away
  12. 3.068 km E of Atka, Alaska · 1473 days ago · 11 km deep · 87 km away
  13. 3.4185 km E of Atka, Alaska · 1457 days ago · 35 km deep · 57 km away
  14. 3.186 km ESE of Atka, Alaska · 1457 days ago · 35 km deep · 59 km away
  15. 1.856 km ESE of Atka, Alaska · 1456 days ago · 63 km deep · 89 km away
  16. 1.762 km E of Atka, Alaska · 1456 days ago · 101 km deep · 86 km away
  17. 2.166 km ENE of Atka, Alaska · 1450 days ago · 8 km deep · 100 km away
  18. 2.6131 km SSE of Atka, Alaska · 1449 days ago · 35 km deep · 78 km away
  19. 2.692 km SE of Atka, Alaska · 1448 days ago · 35 km deep · 58 km away
  20. 2.847 km ESE of Atka, Alaska · 1441 days ago · 10 km deep · 98 km away

Before

  1. 3.6167 km E of Atka, Alaska · 1490 days ago · 64 km deep · 61 km away
  2. 2.9140 km ESE of Atka, Alaska · 1490 days ago · 54 km deep · 30 km away
  3. 1.960 km ESE of Atka, Alaska · 1493 days ago · 66 km deep · 85 km away
  4. 2.673 km ESE of Atka, Alaska · 1494 days ago · 63 km deep · 72 km away
  5. 2.2200 km SE of Atka, Alaska · 1495 days ago · 3 km deep · 90 km away
  6. 2.2205 km SE of Atka, Alaska · 1495 days ago · 10 km deep · 100 km away
  7. 2.0100 km SE of Atka, Alaska · 1495 days ago · 14 km deep · 69 km away
  8. 2.184 km SE of Atka, Alaska · 1496 days ago · 26 km deep · 68 km away
  9. 3.0142 km SE of Atka, Alaska · 1497 days ago · 20 km deep · 65 km away
  10. 1.9101 km SSE of Atka, Alaska · 1501 days ago · 16 km deep · 100 km away
  11. 2.7100 km E of Atka, Alaska · 1502 days ago · 10 km deep · 63 km away
  12. 2.268 km ENE of Atka, Alaska · 1505 days ago · 11 km deep · 99 km away
  13. 2.592 km ESE of Atka, Alaska · 1506 days ago · 10 km deep · 53 km away
  14. 3.578 km ESE of Atka, Alaska · 1506 days ago · 34 km deep · 68 km away
  15. 2.8182 km WSW of Nikolski, Alaska · 1507 days ago · 35 km deep · 90 km away
  16. 3.468 km SE of Atka, Alaska · 1513 days ago · 35 km deep · 83 km away
  17. 2.7136 km SE of Atka, Alaska · 1513 days ago · 35 km deep · 50 km away
  18. 3.1117 km E of Atka, Alaska · 1513 days ago · 10 km deep · 44 km away
  19. 4.6185 km WSW of Nikolski, Alaska · 1514 days ago · 31 km deep · 89 km away
  20. 1.9132 km SE of Atka, Alaska · 1516 days ago · 38 km deep · 27 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000isvq (also filed as ak022bcv04dz). Read Fri, Oct 2, 2026, 3:06 AM UTC.