Alaska earthquakes

M2.5 earthquake 212 km SSW of Adak, Alaska

A magnitude 2.5 earthquake struck 212 km SSW of Adak, Alaska on Sat, Jul 23, 2022, 8:50 AM HADT (17:50 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M3.9 214 km SSW 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
2.5 (ml), micro
Local time
UTC
2022-07-23 17:50:55 UTC
Depth
17.7 km (11.0 mi), shallow
Epicenter
50.003° N, 177.244° 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 9.1 km horizontally, 9.5 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
270°, poorly surrounded by stations
Stations used
15

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 2.2257 km SSW of Adak, Alaska · 1521 days ago · 26 km deep · 80 km away
  2. 1.6158 km SSE of Adak, Alaska · 1515 days ago · 4 km deep · 92 km away
  3. 2.2222 km SSW of Adak, Alaska · 1512 days ago · 33 km deep · 25 km away
  4. 1.9Andreanof Islands, Aleutian Islands, Alaska · 1512 days ago · 26 km deep · 45 km away
  5. 3.0177 km S of Adak, Alaska · 1503 days ago · 10 km deep · 54 km away
  6. 3.9214 km SSW of Adak, Alaska · 1503 days ago · 10 km deep · 10 km away
  7. 2.5176 km S of Adak, Alaska · 1502 days ago · 10 km deep · 45 km away
  8. 3.4200 km SSW of Adak, Alaska · 1500 days ago · 40 km deep · 56 km away
  9. 2.1160 km S of Adak, Alaska · 1495 days ago · 26 km deep · 53 km away
  10. 1.6123 km S of Adak, Alaska · 1494 days ago · 5 km deep · 95 km away
  11. 2.6Andreanof Islands, Aleutian Islands, Alaska · 1492 days ago · 17 km deep · 38 km away
  12. 2.7178 km SSW of Adak, Alaska · 1491 days ago · 10 km deep · 67 km away
  13. 1.9162 km S of Adak, Alaska · 1489 days ago · 8 km deep · 50 km away
  14. 2.2187 km S of Adak, Alaska · 1486 days ago · 6 km deep · 29 km away

Before

  1. 1.9157 km S of Adak, Alaska · 1532 days ago · 26 km deep · 90 km away
  2. 1.8147 km SSW of Adak, Alaska · 1535 days ago · 3 km deep · 65 km away
  3. 2.7255 km SSW of Adak, Alaska · 1537 days ago · 10 km deep · 87 km away
  4. 1.6171 km S of Adak, Alaska · 1546 days ago · 24 km deep · 44 km away
  5. 2.2188 km S of Adak, Alaska · 1554 days ago · 26 km deep · 26 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000ihy2 (also filed as ak0229do206i). Read Wed, Sep 30, 2026, 11:17 PM UTC.