M1.9 earthquake 128 km WSW of Adak, Alaska
A magnitude 1.9 earthquake struck 128 km WSW of Adak, Alaska on Mon, Sep 1, 2025, 10:41 PM HADT (07:41 UTC), 25 km (16 mi) below the surface.
A larger quake followed: M5.5 122 km SW of Adak, Alaska. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.9 (ML, local (Richter)), micro
- Magnitude from
- Alaska Earthquake Center
- Local time
- UTC
- 2025-09-02 07:41:19 UTC
- Depth
- 25.4 km (15.8 mi), shallow
- Epicenter
- 51.415° N, 178.341° W
- Region
- Alaska
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Stations used
- 30
Nearby
Within 100 km, magnitude 1.5 and up: 41 in the 60 days after this one and 117 in the 30 days before it.
After
- 2.740 km SW of Adak, Alaska · 395 days ago · 77 km deep · 89 km away
- 1.895 km SW of Adak, Alaska · 394 days ago · 27 km deep · 55 km away
- 1.883 km SW of Adak, Alaska · 394 days ago · 22 km deep · 56 km away
- 3.8110 km SSW of Adak, Alaska · 392 days ago · 8 km deep · 97 km away
- 2.1187 km WSW of Adak, Alaska · 387 days ago · 18 km deep · 60 km away
- 3.6129 km W of Adak, Alaska · 386 days ago · 10 km deep · 46 km away
- 1.9159 km WSW of Adak, Alaska · 378 days ago · 30 km deep · 33 km away
- 2.0131 km WSW of Adak, Alaska · 377 days ago · 14 km deep · 28 km away
- 5.5122 km SW of Adak, Alaska · 376 days ago · 30 km deep · 33 km away · felt by 4 · tsunami flag
- 3.898 km SW of Adak, Alaska · 374 days ago · 43 km deep · 55 km away
- 1.5151 km W of Adak, Alaska · 372 days ago · 14 km deep · 41 km away
- 2.1164 km WSW of Adak, Alaska · 372 days ago · 16 km deep · 46 km away
- 1.788 km W of Adak, Alaska · 371 days ago · 4 km deep · 57 km away
- 2.6171 km W of Adak, Alaska · 371 days ago · 88 km deep · 59 km away
- 1.850 km SW of Adak, Alaska · 370 days ago · 15 km deep · 83 km away
- 1.8129 km WSW of Adak, Alaska · 370 days ago · 26 km deep · 16 km away
- 2.1117 km SW of Adak, Alaska · 370 days ago · 26 km deep · 34 km away
- 2.695 km WSW of Adak, Alaska · 369 days ago · 34 km deep · 34 km away
- 1.651 km SW of Adak, Alaska · 369 days ago · 14 km deep · 79 km away
- 1.681 km W of Adak, Alaska · 364 days ago · 8 km deep · 61 km away
- 4.2200 km W of Adak, Alaska · 363 days ago · 79 km deep · 82 km away
- 1.7103 km WSW of Adak, Alaska · 362 days ago · 16 km deep · 29 km away
- 1.655 km W of Adak, Alaska · 357 days ago · -2 km deep · 81 km away
- 1.975 km W of Adak, Alaska · 356 days ago · 8 km deep · 67 km away
- 2.6144 km WSW of Adak, Alaska · 352 days ago · 80 km deep · 34 km away
- 2.6122 km SW of Adak, Alaska · 350 days ago · 35 km deep · 33 km away
- 2.8206 km W of Adak, Alaska · 350 days ago · 96 km deep · 94 km away
- 2.454 km SW of Adak, Alaska · 349 days ago · 36 km deep · 86 km away
- 1.8121 km WSW of Adak, Alaska · 349 days ago · 35 km deep · 12 km away
- 4.971 km SSW of Adak, Alaska · 347 days ago · 37 km deep · 89 km away · felt by 2
- 2.184 km W of Adak, Alaska · 347 days ago · 1 km deep · 66 km away
- 1.885 km W of Adak, Alaska · 347 days ago · -2 km deep · 62 km away
- 1.785 km W of Adak, Alaska · 347 days ago · 4 km deep · 61 km away
- 1.984 km W of Adak, Alaska · 347 days ago · 3 km deep · 62 km away
- 1.584 km W of Adak, Alaska · 347 days ago · 5 km deep · 62 km away
- 2.4126 km WSW of Adak, Alaska · 342 days ago · 9 km deep · 21 km away
- 3.8120 km SW of Adak, Alaska · 342 days ago · 31 km deep · 28 km away
- 1.9118 km WSW of Adak, Alaska · 341 days ago · 16 km deep · 13 km away
- 2.7149 km WSW of Adak, Alaska · 341 days ago · 10 km deep · 21 km away
- 1.576 km WSW of Adak, Alaska · 339 days ago · 18 km deep · 52 km away
- 1.9143 km W of Adak, Alaska · 339 days ago · 18 km deep · 47 km away
Before
- 1.7143 km W of Adak, Alaska · 396 days ago · 11 km deep · 37 km away
- 1.895 km SW of Adak, Alaska · 396 days ago · 23 km deep · 39 km away
- 3.3109 km WSW of Adak, Alaska · 398 days ago · 13 km deep · 20 km away
- 2.9101 km SW of Adak, Alaska · 399 days ago · 35 km deep · 48 km away
- 1.688 km SW of Adak, Alaska · 400 days ago · 23 km deep · 49 km away
- 2.0211 km W of Adak, Alaska · 400 days ago · 58 km deep · 92 km away
- 1.7201 km WSW of Adak, Alaska · 400 days ago · 43 km deep · 78 km away
- 1.7157 km WSW of Adak, Alaska · 400 days ago · 18 km deep · 29 km away
- 1.9131 km WSW of Adak, Alaska · 401 days ago · 29 km deep · 18 km away
- 2.5143 km W of Adak, Alaska · 401 days ago · 102 km deep · 46 km away
- 2.5192 km W of Adak, Alaska · 401 days ago · 128 km deep · 90 km away
- 1.9180 km W of Adak, Alaska · 401 days ago · 100 km deep · 78 km away
- 1.8121 km WSW of Adak, Alaska · 401 days ago · 34 km deep · 9 km away
- 1.656 km WSW of Adak, Alaska · 401 days ago · 7 km deep · 73 km away
- 1.897 km WSW of Adak, Alaska · 402 days ago · 54 km deep · 35 km away
- 1.7140 km WSW of Adak, Alaska · 402 days ago · 23 km deep · 18 km away
- 2.5135 km W of Adak, Alaska · 402 days ago · 97 km deep · 42 km away
- 1.9127 km SW of Adak, Alaska · 402 days ago · 26 km deep · 33 km away
- 1.967 km SSW of Adak, Alaska · 402 days ago · 33 km deep · 93 km away
- 1.9173 km WSW of Adak, Alaska · 402 days ago · 21 km deep · 47 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak025b9b2uut. Read Fri, Oct 2, 2026, 6:16 PM UTC.