Alaska earthquakes

M2.9 earthquake 189 km SSE of Atka, Alaska

A magnitude 2.9 earthquake struck 189 km SSE of Atka, Alaska on Mon, Aug 4, 2025, 8:14 AM HADT (17:14 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.7 107 km S of Atka, Alaska. This one was a foreshock.

More in Alaska

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
2.9 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-08-04 17:14:33 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.675° N, 172.985° 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
2.9ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.115 · 10 stations
2.8ML, 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 10.1 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.12
Depth from
Operator assigned
Station coverage gap
304°, poorly surrounded by stations
Stations used
11

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 2.1126 km S of Atka, Alaska · 424 days ago · 20 km deep · 80 km away
  2. 2.9159 km SSE of Atka, Alaska · 424 days ago · 10 km deep · 38 km away
  3. 2.7126 km SSE of Atka, Alaska · 423 days ago · 16 km deep · 62 km away
  4. 2.8177 km SSE of Atka, Alaska · 419 days ago · 10 km deep · 13 km away
  5. 2.5174 km S of Atka, Alaska · 413 days ago · 25 km deep · 82 km away
  6. 2.5164 km SSE of Atka, Alaska · 411 days ago · 4 km deep · 37 km away
  7. 2.2152 km SSE of Atka, Alaska · 411 days ago · 19 km deep · 40 km away
  8. 1.8134 km S of Atka, Alaska · 411 days ago · 10 km deep · 84 km away
  9. 2.7211 km SE of Atka, Alaska · 411 days ago · 10 km deep · 86 km away
  10. 2.4155 km SSE of Atka, Alaska · 410 days ago · 5 km deep · 39 km away
  11. 3.0228 km SSE of Atka, Alaska · 409 days ago · 10 km deep · 40 km away
  12. 4.598 km S of Atka, Alaska · 397 days ago · 10 km deep · 98 km away
  13. 3.7176 km SSE of Atka, Alaska · 397 days ago · 10 km deep · 15 km away
  14. 3.1202 km SSE of Atka, Alaska · 397 days ago · 10 km deep · 50 km away
  15. 3.4108 km SSE of Atka, Alaska · 396 days ago · 35 km deep · 89 km away
  16. 3.7111 km S of Atka, Alaska · 396 days ago · 10 km deep · 92 km away
  17. 4.7107 km S of Atka, Alaska · 396 days ago · 13 km deep · 92 km away
  18. 2.7102 km SSE of Atka, Alaska · 396 days ago · 35 km deep · 91 km away
  19. 2.5167 km S of Atka, Alaska · 396 days ago · 10 km deep · 86 km away
  20. 2.8275 km SSE of Atka, Alaska · 395 days ago · 10 km deep · 87 km away
  21. 2.7136 km SSE of Atka, Alaska · 395 days ago · 20 km deep · 54 km away
  22. 3.1205 km SSE of Atka, Alaska · 371 days ago · 10 km deep · 23 km away

Before

  1. 2.4142 km S of Atka, Alaska · 425 days ago · 15 km deep · 74 km away
  2. 2.6253 km SE of Atka, Alaska · 431 days ago · 10 km deep · 80 km away
  3. 1.9139 km SSE of Atka, Alaska · 432 days ago · 12 km deep · 51 km away
  4. 1.8136 km S of Atka, Alaska · 432 days ago · 11 km deep · 71 km away
  5. 1.8102 km SSE of Atka, Alaska · 433 days ago · 10 km deep · 87 km away
  6. 1.9143 km SSE of Atka, Alaska · 434 days ago · 7 km deep · 61 km away
  7. 2.0130 km S of Atka, Alaska · 435 days ago · 15 km deep · 91 km away
  8. 2.6126 km S of Atka, Alaska · 447 days ago · 10 km deep · 83 km away
  9. 3.5206 km SSE of Atka, Alaska · 447 days ago · 10 km deep · 22 km away
  10. 2.0162 km S of Atka, Alaska · 449 days ago · 23 km deep · 68 km away
  11. 2.9182 km SSE of Atka, Alaska · 450 days ago · 10 km deep · 8 km away
  12. 3.2204 km SSE of Atka, Alaska · 452 days ago · 10 km deep · 42 km away
  13. 2.7145 km SE of Atka, Alaska · 454 days ago · 10 km deep · 60 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000reez (also filed as ak0259xiajun). Read Sat, Oct 3, 2026, 2:56 AM UTC.