M1.8 earthquake 69 km SSW of Adak, Alaska
A magnitude 1.8 earthquake struck 69 km SSW of Adak, Alaska on Fri, Aug 4, 2017, 8:56 AM HADT (17:56 UTC), 21 km (13 mi) below the surface.
A larger quake followed: M5.1 125 km WSW 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
- 1.8 (ML, local (Richter)), micro
- Magnitude from
- Alaska Earthquake Center
- Local time
- UTC
- 2017-08-04 17:56:41 UTC
- Depth
- 21.0 km (13.0 mi), shallow
- Epicenter
- 51.310° N, 177.063° 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
- 16
Nearby
Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 175 in the 30 days before it.
After
- 2.082 km SW of Adak, Alaska · 3346 days ago · 37 km deep · 24 km away
- 1.8122 km WSW of Adak, Alaska · 3346 days ago · 10 km deep · 93 km away
- 1.816 km E of Adak, Alaska · 3345 days ago · 61 km deep · 79 km away
- 3.3136 km WSW of Adak, Alaska · 3345 days ago · 19 km deep · 100 km away
- 1.674 km WSW of Adak, Alaska · 3345 days ago · 22 km deep · 44 km away
- 1.6126 km WSW of Adak, Alaska · 3345 days ago · 5 km deep · 97 km away
- 1.5Andreanof Islands, Aleutian Islands, Alaska · 3344 days ago · 20 km deep · 75 km away
- 1.764 km SSW of Adak, Alaska · 3343 days ago · 26 km deep · 6 km away
- 2.0162 km SW of Adak, Alaska · 3343 days ago · 26 km deep · 98 km away
- 1.660 km SE of Adak, Alaska · 3343 days ago · 23 km deep · 75 km away
- 2.4108 km WSW of Adak, Alaska · 3343 days ago · 55 km deep · 71 km away
- 1.962 km SW of Adak, Alaska · 3342 days ago · 47 km deep · 36 km away
- 2.1Andreanof Islands, Aleutian Islands, Alaska · 3342 days ago · 41 km deep · 84 km away
- 1.854 km SSE of Adak, Alaska · 3342 days ago · 24 km deep · 56 km away
- 1.681 km WSW of Adak, Alaska · 3342 days ago · 25 km deep · 53 km away
- 1.654 km SSE of Adak, Alaska · 3342 days ago · 30 km deep · 50 km away
- 3.042 km S of Adak, Alaska · 3342 days ago · 40 km deep · 43 km away
- 1.679 km WSW of Adak, Alaska · 3342 days ago · 25 km deep · 54 km away
- 1.8124 km SW of Adak, Alaska · 3342 days ago · 26 km deep · 67 km away
- 1.884 km WSW of Adak, Alaska · 3341 days ago · 13 km deep · 51 km away
- 1.9115 km SW of Adak, Alaska · 3341 days ago · 39 km deep · 61 km away
- 1.781 km SSE of Adak, Alaska · 3341 days ago · 35 km deep · 59 km away
- 1.5Andreanof Islands, Aleutian Islands, Alaska · 3341 days ago · 22 km deep · 49 km away
- 2.337 km SW of Adak, Alaska · 3341 days ago · 58 km deep · 39 km away
- 1.6122 km W of Adak, Alaska · 3341 days ago · 14 km deep · 100 km away
- 1.5121 km SW of Adak, Alaska · 3341 days ago · 3 km deep · 68 km away
- 1.738 km SSE of Adak, Alaska · 3341 days ago · 45 km deep · 55 km away
- 1.6116 km WSW of Adak, Alaska · 3341 days ago · 82 km deep · 87 km away
- 1.6Andreanof Islands, Aleutian Islands, Alaska · 3340 days ago · 61 km deep · 34 km away
- 1.583 km WSW of Adak, Alaska · 3340 days ago · 24 km deep · 54 km away
- 1.5100 km SW of Adak, Alaska · 3339 days ago · 17 km deep · 45 km away
- 1.5118 km WSW of Adak, Alaska · 3339 days ago · 19 km deep · 79 km away
- 1.680 km WSW of Adak, Alaska · 3339 days ago · 16 km deep · 51 km away
- 1.780 km SW of Adak, Alaska · 3339 days ago · 38 km deep · 28 km away
- 1.959 km ESE of Adak, Alaska · 3338 days ago · 54 km deep · 98 km away
- 1.866 km SSW of Adak, Alaska · 3338 days ago · 42 km deep · 9 km away
- 2.1119 km SW of Adak, Alaska · 3338 days ago · 19 km deep · 64 km away
- 2.1125 km WSW of Adak, Alaska · 3338 days ago · 7 km deep · 99 km away
- 1.597 km WSW of Adak, Alaska · 3338 days ago · 15 km deep · 61 km away
- 1.6126 km WSW of Adak, Alaska · 3338 days ago · 14 km deep · 98 km away
- 1.9111 km SW of Adak, Alaska · 3338 days ago · 37 km deep · 56 km away
- 1.5103 km WSW of Adak, Alaska · 3338 days ago · 59 km deep · 58 km away
- 2.223 km SSE of Adak, Alaska · 3338 days ago · 59 km deep · 53 km away
- 1.847 km SE of Adak, Alaska · 3338 days ago · 47 km deep · 63 km away
- 4.67 km W of Adak, Alaska · 3337 days ago · 78 km deep · 68 km away
- 2.1123 km WSW of Adak, Alaska · 3336 days ago · 7 km deep · 97 km away
- 2.788 km SW of Adak, Alaska · 3336 days ago · 38 km deep · 46 km away
- 2.266 km SSE of Adak, Alaska · 3336 days ago · 25 km deep · 67 km away
- 1.864 km SSW of Adak, Alaska · 3336 days ago · 36 km deep · 5 km away
- 1.7123 km WSW of Adak, Alaska · 3336 days ago · 61 km deep · 94 km away
- 3.0128 km WSW of Adak, Alaska · 3335 days ago · 17 km deep · 100 km away
- 2.316 km SSW of Adak, Alaska · 3334 days ago · 68 km deep · 53 km away
- 1.843 km S of Adak, Alaska · 3334 days ago · 24 km deep · 37 km away
- 3.0130 km WSW of Adak, Alaska · 3334 days ago · 10 km deep · 93 km away
- 2.3126 km WSW of Adak, Alaska · 3334 days ago · 8 km deep · 100 km away
- 1.610 km WSW of Adak, Alaska · 3334 days ago · 64 km deep · 63 km away
- 2.7126 km WSW of Adak, Alaska · 3334 days ago · 19 km deep · 93 km away
- 2.2Andreanof Islands, Aleutian Islands, Alaska · 3333 days ago · 5 km deep · 100 km away
- 2.3125 km WSW of Adak, Alaska · 3333 days ago · 13 km deep · 99 km away
- 2.1111 km SW of Adak, Alaska · 3333 days ago · 39 km deep · 58 km away
The first 60 of at least 199.
Before
- 2.3125 km WSW of Adak, Alaska · 3346 days ago · 8 km deep · 99 km away
- 1.8126 km WSW of Adak, Alaska · 3347 days ago · 13 km deep · 99 km away
- 1.936 km SE of Adak, Alaska · 3348 days ago · 19 km deep · 61 km away
- 2.152 km SSW of Adak, Alaska · 3349 days ago · 54 km deep · 17 km away
- 2.184 km WSW of Adak, Alaska · 3349 days ago · 13 km deep · 53 km away
- 2.1120 km W of Adak, Alaska · 3349 days ago · 9 km deep · 99 km away
- 1.998 km SW of Adak, Alaska · 3349 days ago · 22 km deep · 35 km away
- 2.6130 km WSW of Adak, Alaska · 3349 days ago · 7 km deep · 95 km away
- 1.775 km WSW of Adak, Alaska · 3349 days ago · 37 km deep · 44 km away
- 1.642 km SE of Adak, Alaska · 3350 days ago · 38 km deep · 69 km away
- 1.638 km SE of Adak, Alaska · 3350 days ago · 45 km deep · 68 km away
- 3.343 km SE of Adak, Alaska · 3350 days ago · 45 km deep · 71 km away
- 5.227 km ESE of Adak, Alaska · 3350 days ago · 61 km deep · 79 km away · felt by 2 · tsunami flag
- 1.555 km SSW of Adak, Alaska · 3350 days ago · 34 km deep · 17 km away
- 3.3129 km WSW of Adak, Alaska · 3350 days ago · 8 km deep · 97 km away
- 1.984 km WSW of Adak, Alaska · 3351 days ago · 13 km deep · 50 km away
- 1.678 km W of Adak, Alaska · 3351 days ago · 75 km deep · 71 km away
- 1.869 km WSW of Adak, Alaska · 3351 days ago · 33 km deep · 41 km away
- 1.7124 km WSW of Adak, Alaska · 3351 days ago · 5 km deep · 94 km away
- 3.4129 km WSW of Adak, Alaska · 3351 days ago · 12 km deep · 96 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak0179xijf9c (also filed as ak16434248). Read Fri, Oct 2, 2026, 6:15 PM UTC.