Alaska earthquakes

M4.0 earthquake 294 km WSW of Adak, Alaska

A magnitude 4.0 earthquake struck 294 km WSW of Adak, Alaska on Fri, Jan 30, 2026, 12:56 AM GMT+12 (12:56 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.4 255 km WSW of Adak, 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
4.0 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2026-01-29 12:56:59 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.787° N, 179.508° E
Region
Alaska
Strongest shaking
III, weak shaking
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
4.0mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed · ±0.164 · 10 stations
3.8ML, local (Richter)Alaska Earthquake CenterReviewed · ±0.2 · 13 stations

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated
III, weak shaking
Peak ground acceleration
0.4% of gravity
Peak ground velocity
0.1 cm/s
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

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, 1.9 km in depth
Magnitude uncertainty
±0.16
Depth from
Operator assigned
Station coverage gap
207°, poorly surrounded by stations
Stations used
36

Nearby

Within 100 km, magnitude 1.5 and up: 41 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 3.0240 km WSW of Adak, Alaska · 244 days ago · 10 km deep · 54 km away
  2. 3.6265 km W of Adak, Alaska · 244 days ago · 80 km deep · 92 km away
  3. 3.3283 km WSW of Adak, Alaska · 242 days ago · 35 km deep · 66 km away
  4. 3.0283 km WSW of Adak, Alaska · 240 days ago · 35 km deep · 37 km away
  5. 3.1214 km WSW of Adak, Alaska · 239 days ago · 12 km deep · 85 km away
  6. 3.5Rat Islands, Aleutian Islands, Alaska · 230 days ago · 20 km deep · 74 km away
  7. 2.8Rat Islands, Aleutian Islands, Alaska · 229 days ago · 35 km deep · 85 km away
  8. 2.8223 km WSW of Adak, Alaska · 228 days ago · 60 km deep · 87 km away
  9. 2.7224 km WSW of Adak, Alaska · 225 days ago · 35 km deep · 70 km away
  10. 3.3Rat Islands, Aleutian Islands, Alaska · 225 days ago · 20 km deep · 68 km away
  11. 3.9249 km WSW of Adak, Alaska · 221 days ago · 9 km deep · 46 km away
  12. 3.0Rat Islands, Aleutian Islands, Alaska · 221 days ago · 10 km deep · 69 km away
  13. 3.8206 km WSW of Adak, Alaska · 217 days ago · 10 km deep · 89 km away
  14. 3.9Rat Islands, Aleutian Islands, Alaska · 212 days ago · 10 km deep · 20 km away
  15. 3.0247 km WSW of Adak, Alaska · 212 days ago · 8 km deep · 51 km away
  16. 4.4255 km WSW of Adak, Alaska · 211 days ago · 10 km deep · 39 km away
  17. 3.3248 km WSW of Adak, Alaska · 209 days ago · 13 km deep · 50 km away
  18. 2.5298 km WSW of Adak, Alaska · 208 days ago · 30 km deep · 30 km away
  19. 1.8271 km W of Adak, Alaska · 207 days ago · 24 km deep · 86 km away
  20. 2.5259 km WSW of Adak, Alaska · 207 days ago · 55 km deep · 71 km away
  21. 3.1299 km W of Adak, Alaska · 207 days ago · 32 km deep · 92 km away
  22. 2.9259 km W of Adak, Alaska · 204 days ago · 79 km deep · 92 km away
  23. 2.7253 km WSW of Adak, Alaska · 203 days ago · 36 km deep · 65 km away
  24. 3.5268 km W of Adak, Alaska · 203 days ago · 81 km deep · 91 km away
  25. 3.0221 km WSW of Adak, Alaska · 201 days ago · 10 km deep · 77 km away
  26. 2.2Rat Islands, Aleutian Islands, Alaska · 199 days ago · 49 km deep · 83 km away
  27. 2.3282 km W of Adak, Alaska · 197 days ago · 76 km deep · 93 km away
  28. 2.5281 km WSW of Adak, Alaska · 197 days ago · 41 km deep · 57 km away
  29. 2.0230 km WSW of Adak, Alaska · 197 days ago · 67 km deep · 85 km away
  30. 2.1Rat Islands, Aleutian Islands, Alaska · 196 days ago · 10 km deep · 58 km away
  31. 2.3Rat Islands, Aleutian Islands, Alaska · 196 days ago · 39 km deep · 86 km away
  32. 2.1285 km WSW of Adak, Alaska · 196 days ago · 60 km deep · 70 km away
  33. 2.4251 km WSW of Adak, Alaska · 195 days ago · 10 km deep · 72 km away
  34. 2.8248 km WSW of Adak, Alaska · 194 days ago · 10 km deep · 46 km away
  35. 3.8261 km WSW of Adak, Alaska · 193 days ago · 60 km deep · 68 km away
  36. 2.6217 km WSW of Adak, Alaska · 191 days ago · 66 km deep · 97 km away
  37. 2.7238 km WSW of Adak, Alaska · 188 days ago · 10 km deep · 56 km away
  38. 2.5296 km WSW of Adak, Alaska · 187 days ago · 19 km deep · 36 km away
  39. 2.8296 km WSW of Adak, Alaska · 187 days ago · 35 km deep · 33 km away
  40. 3.0219 km WSW of Adak, Alaska · 186 days ago · 6 km deep · 81 km away
  41. 2.6219 km WSW of Adak, Alaska · 186 days ago · 8 km deep · 84 km away

Before

  1. 3.9226 km SW of Adak, Alaska · 246 days ago · 7 km deep · 82 km away
  2. 3.2Rat Islands, Aleutian Islands, Alaska · 250 days ago · 35 km deep · 58 km away
  3. 3.5299 km WSW of Adak, Alaska · 250 days ago · 26 km deep · 73 km away
  4. 2.8233 km WSW of Adak, Alaska · 254 days ago · 18 km deep · 75 km away
  5. 3.1239 km WSW of Adak, Alaska · 254 days ago · 14 km deep · 55 km away
  6. 3.3Rat Islands, Aleutian Islands, Alaska · 255 days ago · 10 km deep · 67 km away
  7. 2.7Rat Islands, Aleutian Islands, Alaska · 258 days ago · 48 km deep · 83 km away
  8. 3.3233 km WSW of Adak, Alaska · 262 days ago · 35 km deep · 63 km away
  9. 3.4Rat Islands, Aleutian Islands, Alaska · 272 days ago · 10 km deep · 74 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000s58f (also filed as ak2026cakcgr). Read Fri, Oct 2, 2026, 7:08 AM UTC.