Alaska earthquakes

M2.7 earthquake 210 km S of Atka, Alaska

A magnitude 2.7 earthquake struck 210 km S of Atka, Alaska on Fri, May 23, 2025, 8:42 AM HADT (17:42 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.8 197 km SSE 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
2.7 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2025-05-23 17:42:35 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.303° N, 174.161° 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
2.7ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.105 · 12 stations
2.7ML, 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 4.5 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
293°, poorly surrounded by stations
Stations used
19

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 2.9184 km S of Atka, Alaska · 497 days ago · 10 km deep · 31 km away
  2. 3.2232 km S of Atka, Alaska · 495 days ago · 10 km deep · 37 km away
  3. 3.6209 km SSE of Atka, Alaska · 492 days ago · 10 km deep · 72 km away
  4. 2.6152 km S of Atka, Alaska · 490 days ago · 10 km deep · 66 km away
  5. 3.8197 km SSE of Atka, Alaska · 483 days ago · 10 km deep · 64 km away
  6. 1.9184 km SSW of Atka, Alaska · 483 days ago · 9 km deep · 56 km away
  7. 2.1161 km SSE of Adak, Alaska · 481 days ago · 5 km deep · 99 km away
  8. 2.6176 km SSE of Atka, Alaska · 476 days ago · 10 km deep · 51 km away
  9. 2.6189 km SSE of Atka, Alaska · 476 days ago · 10 km deep · 70 km away
  10. 2.9199 km SSE of Atka, Alaska · 474 days ago · 10 km deep · 99 km away
  11. 2.9141 km S of Atka, Alaska · 464 days ago · 10 km deep · 71 km away
  12. 3.8227 km SSE of Atka, Alaska · 462 days ago · 10 km deep · 67 km away
  13. 2.7111 km S of Atka, Alaska · 457 days ago · 10 km deep · 100 km away
  14. 3.2204 km SSE of Atka, Alaska · 451 days ago · 10 km deep · 54 km away
  15. 2.9182 km SSE of Atka, Alaska · 450 days ago · 10 km deep · 88 km away
  16. 2.0162 km S of Atka, Alaska · 449 days ago · 23 km deep · 52 km away
  17. 3.5206 km SSE of Atka, Alaska · 447 days ago · 10 km deep · 81 km away
  18. 2.6126 km S of Atka, Alaska · 446 days ago · 10 km deep · 86 km away
  19. 2.8194 km SSE of Adak, Alaska · 446 days ago · 10 km deep · 75 km away

Before

  1. 2.0185 km S of Atka, Alaska · 501 days ago · 19 km deep · 43 km away
  2. 2.5182 km SSE of Atka, Alaska · 503 days ago · 10 km deep · 56 km away
  3. 2.7154 km S of Atka, Alaska · 503 days ago · 10 km deep · 60 km away
  4. 2.7179 km S of Atka, Alaska · 510 days ago · 10 km deep · 39 km away
  5. 3.9198 km SSE of Atka, Alaska · 510 days ago · 10 km deep · 49 km away
  6. 2.6152 km S of Atka, Alaska · 514 days ago · 10 km deep · 62 km away
  7. 2.2166 km S of Atka, Alaska · 518 days ago · 4 km deep · 47 km away
  8. 2.3201 km S of Atka, Alaska · 523 days ago · 25 km deep · 31 km away
  9. 3.4183 km SSE of Atka, Alaska · 523 days ago · 7 km deep · 74 km away
  10. 2.8121 km S of Atka, Alaska · 523 days ago · 29 km deep · 89 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000qgl7 (also filed as ak0256ks82wq). Read Fri, Oct 2, 2026, 8:15 AM UTC.