Alaska earthquakes

M3.1 earthquake 180 km SSE of Atka, Alaska

A magnitude 3.1 earthquake struck 180 km SSE of Atka, Alaska on Fri, Dec 20, 2024, 6:53 PM HAST (04:53 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.9 198 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
3.1 (ML, local (Richter)), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2024-12-21 04:53:42 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.661° N, 173.376° 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
3.1ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.105 · 12 stations
2.9ML, 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 4.3 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
237°, poorly surrounded by stations
Stations used
22

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 2.7145 km SE of Atka, Alaska · 649 days ago · 17 km deep · 96 km away
  2. 3.9198 km SSE of Atka, Alaska · 637 days ago · 10 km deep · 31 km away
  3. 2.9159 km S of Atka, Alaska · 635 days ago · 10 km deep · 51 km away
  4. 2.7136 km SSE of Atka, Alaska · 630 days ago · 10 km deep · 46 km away
  5. 2.9181 km SSE of Atka, Alaska · 628 days ago · 10 km deep · 41 km away
  6. 3.4214 km SSE of Atka, Alaska · 626 days ago · 10 km deep · 49 km away
  7. 2.8163 km SSE of Atka, Alaska · 623 days ago · 10 km deep · 36 km away
  8. 2.5106 km S of Atka, Alaska · 618 days ago · 11 km deep · 82 km away
  9. 2.9139 km S of Atka, Alaska · 615 days ago · 10 km deep · 87 km away
  10. 3.1178 km S of Atka, Alaska · 615 days ago · 10 km deep · 69 km away
  11. 3.0186 km S of Atka, Alaska · 613 days ago · 10 km deep · 87 km away
  12. 3.1154 km SSE of Atka, Alaska · 613 days ago · 10 km deep · 32 km away
  13. 3.2205 km S of Atka, Alaska · 610 days ago · 10 km deep · 65 km away
  14. 3.3196 km S of Atka, Alaska · 606 days ago · 38 km deep · 98 km away
  15. 3.799 km SSE of Atka, Alaska · 605 days ago · 35 km deep · 83 km away
  16. 3.7184 km S of Atka, Alaska · 602 days ago · 10 km deep · 78 km away
  17. 3.0141 km S of Atka, Alaska · 601 days ago · 10 km deep · 59 km away
  18. 2.4127 km S of Atka, Alaska · 592 days ago · 5 km deep · 60 km away

Before

  1. 2.9113 km SSE of Atka, Alaska · 653 days ago · 10 km deep · 67 km away
  2. 2.3141 km S of Atka, Alaska · 654 days ago · 7 km deep · 60 km away
  3. 3.3148 km S of Atka, Alaska · 658 days ago · 10 km deep · 50 km away
  4. 3.1185 km S of Atka, Alaska · 663 days ago · 10 km deep · 55 km away
  5. 3.8184 km SSE of Atka, Alaska · 664 days ago · 10 km deep · 46 km away
  6. 3.1160 km SSE of Atka, Alaska · 668 days ago · 10 km deep · 33 km away
  7. 3.1199 km SSE of Atka, Alaska · 677 days ago · 10 km deep · 52 km away
  8. 2.9181 km S of Atka, Alaska · 677 days ago · 10 km deep · 46 km away
  9. 3.4196 km S of Atka, Alaska · 679 days ago · 10 km deep · 93 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000pj2w (also filed as ak024gcu0rbk). Read Fri, Oct 2, 2026, 4:06 PM UTC.