Alaska earthquakes

M2.6 earthquake 278 km WSW of Adak, Alaska

A magnitude 2.6 earthquake struck 278 km WSW of Adak, Alaska on Sat, Mar 4, 2023, 2:02 AM GMT+12 (14:02 UTC), 27 km (17 mi) below the surface.

A larger quake followed: M4.2 Rat Islands, Aleutian Islands, 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
2023-03-03 14:02:19 UTC
Depth
26.6 km (16.5 mi), shallow
Epicenter
51.431° N, 179.399° E
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 · ±0.115 · 10 stations
2.2ML, 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 3.9 km horizontally, 11.4 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
151°
Stations used
11

Nearby

Within 100 km, magnitude 1.5 and up: 88 in the 60 days after this one and 29 in the 30 days before it.

After

  1. 4.2Rat Islands, Aleutian Islands, Alaska · 1308 days ago · 77 km deep · 50 km away
  2. 3.3Rat Islands, Aleutian Islands, Alaska · 1306 days ago · 110 km deep · 87 km away
  3. 3.7Rat Islands, Aleutian Islands, Alaska · 1306 days ago · 129 km deep · 93 km away
  4. 2.9293 km W of Adak, Alaska · 1305 days ago · 57 km deep · 23 km away
  5. 3.6295 km W of Adak, Alaska · 1305 days ago · 77 km deep · 20 km away
  6. 3.8199 km WSW of Adak, Alaska · 1305 days ago · 35 km deep · 97 km away
  7. 3.2Rat Islands, Aleutian Islands, Alaska · 1305 days ago · 109 km deep · 62 km away
  8. 2.7202 km W of Adak, Alaska · 1304 days ago · 96 km deep · 79 km away
  9. 2.2201 km W of Adak, Alaska · 1304 days ago · 82 km deep · 87 km away
  10. 3.7Rat Islands, Aleutian Islands, Alaska · 1303 days ago · 54 km deep · 95 km away
  11. 2.2Rat Islands, Aleutian Islands, Alaska · 1303 days ago · 94 km deep · 53 km away
  12. 2.5219 km W of Adak, Alaska · 1302 days ago · 109 km deep · 79 km away
  13. 3.8Rat Islands, Aleutian Islands, Alaska · 1302 days ago · 37 km deep · 74 km away
  14. 3.1Rat Islands, Aleutian Islands, Alaska · 1301 days ago · 94 km deep · 64 km away
  15. 2.9Rat Islands, Aleutian Islands, Alaska · 1301 days ago · 35 km deep · 82 km away
  16. 2.9225 km W of Adak, Alaska · 1299 days ago · 99 km deep · 63 km away
  17. 2.5201 km WSW of Adak, Alaska · 1295 days ago · 59 km deep · 81 km away
  18. 3.5Rat Islands, Aleutian Islands, Alaska · 1295 days ago · 112 km deep · 88 km away
  19. 2.7261 km W of Adak, Alaska · 1295 days ago · 64 km deep · 21 km away
  20. 3.2244 km WSW of Adak, Alaska · 1292 days ago · 35 km deep · 65 km away
  21. 2.7225 km WSW of Adak, Alaska · 1288 days ago · 13 km deep · 69 km away
  22. 2.9220 km WSW of Adak, Alaska · 1288 days ago · 35 km deep · 69 km away
  23. 2.7234 km W of Adak, Alaska · 1287 days ago · 18 km deep · 51 km away
  24. 2.8207 km W of Adak, Alaska · 1287 days ago · 85 km deep · 73 km away
  25. 2.3190 km WSW of Adak, Alaska · 1286 days ago · 24 km deep · 93 km away
  26. 2.5222 km WSW of Adak, Alaska · 1285 days ago · 10 km deep · 57 km away
  27. 2.0222 km WSW of Adak, Alaska · 1285 days ago · 10 km deep · 57 km away
  28. 2.1233 km W of Adak, Alaska · 1284 days ago · 9 km deep · 53 km away
  29. 2.3196 km W of Adak, Alaska · 1284 days ago · 94 km deep · 93 km away
  30. 2.6229 km W of Adak, Alaska · 1282 days ago · 96 km deep · 56 km away
  31. 2.3Rat Islands, Aleutian Islands, Alaska · 1282 days ago · 58 km deep · 54 km away
  32. 1.8248 km WSW of Adak, Alaska · 1281 days ago · 58 km deep · 31 km away
  33. 3.1289 km WSW of Adak, Alaska · 1279 days ago · 27 km deep · 27 km away
  34. 3.3Rat Islands, Aleutian Islands, Alaska · 1279 days ago · 91 km deep · 67 km away
  35. 4.0Rat Islands, Aleutian Islands, Alaska · 1278 days ago · 57 km deep · 24 km away
  36. 3.6Andreanof Islands, Aleutian Islands, Alaska · 1278 days ago · 17 km deep · 80 km away
  37. 2.1Rat Islands, Aleutian Islands, Alaska · 1277 days ago · 26 km deep · 66 km away
  38. 3.1Rat Islands, Aleutian Islands, Alaska · 1276 days ago · 69 km deep · 68 km away
  39. 2.8Rat Islands, Aleutian Islands, Alaska · 1276 days ago · 71 km deep · 54 km away
  40. 3.6271 km W of Adak, Alaska · 1276 days ago · 66 km deep · 11 km away
  41. 3.9Andreanof Islands, Aleutian Islands, Alaska · 1276 days ago · 10 km deep · 65 km away
  42. 1.9258 km W of Adak, Alaska · 1275 days ago · 61 km deep · 22 km away
  43. 2.0246 km W of Adak, Alaska · 1275 days ago · 75 km deep · 36 km away
  44. 3.2233 km W of Adak, Alaska · 1275 days ago · 98 km deep · 53 km away
  45. 1.9207 km WSW of Adak, Alaska · 1275 days ago · 22 km deep · 83 km away
  46. 3.0Rat Islands, Aleutian Islands, Alaska · 1274 days ago · 21 km deep · 22 km away
  47. 3.2Rat Islands, Aleutian Islands, Alaska · 1274 days ago · 118 km deep · 85 km away
  48. 2.5Rat Islands, Aleutian Islands, Alaska · 1273 days ago · 72 km deep · 43 km away
  49. 2.8Rat Islands, Aleutian Islands, Alaska · 1272 days ago · 123 km deep · 84 km away
  50. 2.9Rat Islands, Aleutian Islands, Alaska · 1272 days ago · 41 km deep · 43 km away
  51. 2.9Rat Islands, Aleutian Islands, Alaska · 1272 days ago · 115 km deep · 75 km away
  52. 2.9Rat Islands, Aleutian Islands, Alaska · 1272 days ago · 136 km deep · 73 km away
  53. 3.2Rat Islands, Aleutian Islands, Alaska · 1271 days ago · 114 km deep · 83 km away
  54. 2.8296 km WSW of Adak, Alaska · 1271 days ago · 39 km deep · 29 km away
  55. 2.8Rat Islands, Aleutian Islands, Alaska · 1271 days ago · 81 km deep · 68 km away
  56. 2.8299 km W of Adak, Alaska · 1270 days ago · 10 km deep · 44 km away
  57. 3.1Rat Islands, Aleutian Islands, Alaska · 1268 days ago · 19 km deep · 99 km away
  58. 2.4235 km WSW of Adak, Alaska · 1268 days ago · 32 km deep · 65 km away
  59. 3.3252 km WSW of Adak, Alaska · 1267 days ago · 17 km deep · 39 km away
  60. 2.2191 km W of Adak, Alaska · 1267 days ago · 96 km deep · 95 km away

The first 60 of 88.

Before

  1. 3.5Rat Islands, Aleutian Islands, Alaska · 1309 days ago · 35 km deep · 41 km away
  2. 2.6Rat Islands, Aleutian Islands, Alaska · 1309 days ago · 33 km deep · 36 km away
  3. 3.0229 km WSW of Adak, Alaska · 1310 days ago · 72 km deep · 50 km away
  4. 2.9Rat Islands, Aleutian Islands, Alaska · 1313 days ago · 73 km deep · 53 km away
  5. 2.7258 km WSW of Adak, Alaska · 1315 days ago · 29 km deep · 36 km away
  6. 4.2Rat Islands, Aleutian Islands, Alaska · 1316 days ago · 109 km deep · 91 km away
  7. 2.6Rat Islands, Aleutian Islands, Alaska · 1316 days ago · 67 km deep · 40 km away
  8. 3.3299 km WSW of Adak, Alaska · 1316 days ago · 38 km deep · 23 km away
  9. 2.5188 km W of Adak, Alaska · 1320 days ago · 91 km deep · 90 km away
  10. 2.1200 km WSW of Adak, Alaska · 1320 days ago · 35 km deep · 81 km away
  11. 2.4203 km WSW of Adak, Alaska · 1322 days ago · 49 km deep · 76 km away
  12. 3.2Rat Islands, Aleutian Islands, Alaska · 1328 days ago · 75 km deep · 55 km away
  13. 2.9200 km WSW of Adak, Alaska · 1328 days ago · 35 km deep · 99 km away
  14. 4.4Rat Islands, Aleutian Islands, Alaska · 1329 days ago · 63 km deep · 62 km away
  15. 3.4218 km W of Adak, Alaska · 1331 days ago · 91 km deep · 66 km away
  16. 2.8Rat Islands, Aleutian Islands, Alaska · 1331 days ago · 35 km deep · 46 km away
  17. 2.6288 km WSW of Adak, Alaska · 1331 days ago · 24 km deep · 40 km away
  18. 2.5200 km WSW of Adak, Alaska · 1331 days ago · 71 km deep · 79 km away
  19. 2.0261 km W of Adak, Alaska · 1332 days ago · 3 km deep · 58 km away
  20. 2.2239 km WSW of Adak, Alaska · 1332 days ago · 13 km deep · 58 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000jicb (also filed as ak0232uro20h). Read Fri, Oct 2, 2026, 1:30 AM UTC.