Alaska earthquakes

M2.6 earthquake 262 km SW of Adak, Alaska

A magnitude 2.6 earthquake struck 262 km SW of Adak, Alaska on Mon, Aug 5, 2024, 6:40 AM GMT-12 (18:40 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.0 250 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
2.6 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2024-08-05 18:40:52 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.029° N, 178.971° 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
2.6ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.097 · 14 stations
2.6ML, 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 3.6 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
269°, poorly surrounded by stations
Stations used
20

Nearby

Within 100 km, magnitude 1.5 and up: 15 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 2.8240 km SSW of Adak, Alaska · 778 days ago · 10 km deep · 93 km away
  2. 4.0250 km SSW of Adak, Alaska · 774 days ago · 10 km deep · 53 km away
  3. 2.1262 km SW of Adak, Alaska · 762 days ago · 7 km deep · 6 km away
  4. 2.3Rat Islands, Aleutian Islands, Alaska · 761 days ago · 20 km deep · 79 km away
  5. 2.3220 km SSW of Adak, Alaska · 761 days ago · 27 km deep · 73 km away
  6. 1.9181 km SW of Adak, Alaska · 760 days ago · 26 km deep · 93 km away
  7. 2.0263 km SW of Adak, Alaska · 760 days ago · 4 km deep · 52 km away
  8. 2.2203 km WSW of Adak, Alaska · 758 days ago · 15 km deep · 97 km away
  9. 2.6270 km SW of Adak, Alaska · 752 days ago · 10 km deep · 9 km away
  10. 2.9285 km SW of Adak, Alaska · 749 days ago · 10 km deep · 37 km away
  11. 3.1284 km SW of Adak, Alaska · 748 days ago · 10 km deep · 38 km away
  12. 3.2181 km SSW of Adak, Alaska · 746 days ago · 10 km deep · 89 km away
  13. 3.1Rat Islands, Aleutian Islands, Alaska · 746 days ago · 10 km deep · 85 km away
  14. 2.7209 km WSW of Adak, Alaska · 744 days ago · 42 km deep · 94 km away
  15. 2.9Rat Islands, Aleutian Islands, Alaska · 733 days ago · 10 km deep · 84 km away

Before

  1. 2.2239 km SW of Adak, Alaska · 788 days ago · 13 km deep · 42 km away
  2. 2.3195 km SW of Adak, Alaska · 805 days ago · 9 km deep · 67 km away
  3. 2.0211 km SW of Adak, Alaska · 808 days ago · 12 km deep · 62 km away
  4. 2.7Rat Islands, Aleutian Islands, Alaska · 813 days ago · 10 km deep · 100 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000ndp7 (also filed as ak024a0u45ar). Read Fri, Oct 2, 2026, 2:49 AM UTC.