M1.9 earthquake 43 km SW of Adak, Alaska
A magnitude 1.9 earthquake struck 43 km SW of Adak, Alaska on Mon, Sep 25, 2017, 4:34 AM HADT (13:34 UTC), 47 km (29 mi) below the surface.
A larger quake followed: M4.8 131 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
- 1.9 (ML, local (Richter)), micro
- Magnitude from
- Alaska Earthquake Center
- Local time
- UTC
- 2017-09-25 13:34:09 UTC
- Depth
- 46.8 km (29.1 mi), shallow
- Epicenter
- 51.590° N, 177.077° 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
- 14
Nearby
Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 135 in the 30 days before it.
After
- 2.0128 km W of Adak, Alaska · 3293 days ago · 16 km deep · 97 km away
- 1.9103 km WSW of Adak, Alaska · 3293 days ago · 43 km deep · 65 km away
- 1.9126 km W of Adak, Alaska · 3292 days ago · 17 km deep · 96 km away
- 2.0123 km WSW of Adak, Alaska · 3292 days ago · 13 km deep · 90 km away
- 1.8123 km W of Adak, Alaska · 3292 days ago · 18 km deep · 92 km away
- 1.970 km SW of Adak, Alaska · 3291 days ago · 54 km deep · 28 km away
- 1.7126 km WSW of Adak, Alaska · 3291 days ago · 13 km deep · 94 km away
- 1.5Andreanof Islands, Aleutian Islands, Alaska · 3291 days ago · 16 km deep · 98 km away
- 1.569 km WSW of Adak, Alaska · 3291 days ago · 69 km deep · 31 km away
- 1.5108 km WSW of Adak, Alaska · 3291 days ago · 44 km deep · 73 km away
- 2.3126 km WSW of Adak, Alaska · 3291 days ago · 7 km deep · 93 km away
- 3.3126 km W of Adak, Alaska · 3290 days ago · 13 km deep · 95 km away
- 4.477 km ESE of Adak, Alaska · 3290 days ago · 42 km deep · 99 km away
- 1.6122 km WSW of Adak, Alaska · 3290 days ago · 12 km deep · 89 km away
- 1.842 km SSE of Adak, Alaska · 3290 days ago · 1 km deep · 54 km away
- 2.8128 km WSW of Adak, Alaska · 3290 days ago · 16 km deep · 91 km away
- 2.834 km ENE of Adak, Alaska · 3290 days ago · 14 km deep · 78 km away
- 2.036 km NE of Adak, Alaska · 3290 days ago · 5 km deep · 80 km away
- 3.0134 km WSW of Adak, Alaska · 3289 days ago · 14 km deep · 100 km away
- 2.939 km NE of Adak, Alaska · 3289 days ago · 10 km deep · 83 km away
- 2.7125 km WSW of Adak, Alaska · 3289 days ago · 16 km deep · 90 km away
- 2.2124 km WSW of Adak, Alaska · 3289 days ago · 7 km deep · 91 km away
- 2.143 km NNE of Adak, Alaska · 3289 days ago · 166 km deep · 86 km away
- 1.7Andreanof Islands, Aleutian Islands, Alaska · 3289 days ago · 63 km deep · 47 km away
- 3.1123 km WSW of Adak, Alaska · 3289 days ago · 13 km deep · 91 km away
- 1.6112 km WSW of Adak, Alaska · 3288 days ago · 25 km deep · 73 km away
- 2.095 km WSW of Adak, Alaska · 3288 days ago · 42 km deep · 56 km away
- 1.936 km NE of Adak, Alaska · 3288 days ago · 7 km deep · 80 km away
- 1.5126 km W of Adak, Alaska · 3288 days ago · 7 km deep · 96 km away
- 1.5125 km W of Adak, Alaska · 3288 days ago · 14 km deep · 96 km away
- 1.955 km ESE of Adak, Alaska · 3288 days ago · 51 km deep · 78 km away
- 2.1130 km WSW of Adak, Alaska · 3288 days ago · 11 km deep · 95 km away
- 1.9130 km W of Adak, Alaska · 3287 days ago · 15 km deep · 100 km away
- 2.3124 km W of Adak, Alaska · 3286 days ago · 12 km deep · 93 km away
- 2.3123 km W of Adak, Alaska · 3286 days ago · 5 km deep · 91 km away
- 2.1124 km W of Adak, Alaska · 3286 days ago · 15 km deep · 92 km away
- 2.1124 km WSW of Adak, Alaska · 3286 days ago · 11 km deep · 91 km away
- 2.7121 km WSW of Adak, Alaska · 3286 days ago · 14 km deep · 83 km away
- 2.6122 km WSW of Adak, Alaska · 3286 days ago · 19 km deep · 81 km away
- 2.7124 km WSW of Adak, Alaska · 3285 days ago · 20 km deep · 89 km away
- 2.173 km SW of Adak, Alaska · 3285 days ago · 25 km deep · 31 km away
- 2.8116 km WSW of Adak, Alaska · 3284 days ago · 20 km deep · 76 km away
- 2.660 km SSW of Adak, Alaska · 3284 days ago · 39 km deep · 20 km away
- 3.0134 km WSW of Adak, Alaska · 3283 days ago · 29 km deep · 93 km away
- 2.2129 km WSW of Adak, Alaska · 3283 days ago · 8 km deep · 97 km away
- 2.565 km SSW of Adak, Alaska · 3282 days ago · 37 km deep · 28 km away
- 2.3103 km SW of Adak, Alaska · 3282 days ago · 41 km deep · 61 km away
- 2.267 km W of Adak, Alaska · 3282 days ago · 13 km deep · 51 km away
- 1.6Andreanof Islands, Aleutian Islands, Alaska · 3282 days ago · 17 km deep · 97 km away
- 2.4125 km WSW of Adak, Alaska · 3282 days ago · 13 km deep · 93 km away
- 2.981 km S of Adak, Alaska · 3282 days ago · 17 km deep · 65 km away
- 2.151 km SW of Adak, Alaska · 3281 days ago · 34 km deep · 11 km away
- 1.957 km SSE of Adak, Alaska · 3281 days ago · 26 km deep · 61 km away
- 1.6125 km W of Adak, Alaska · 3281 days ago · 18 km deep · 97 km away
- 3.2Andreanof Islands, Aleutian Islands, Alaska · 3280 days ago · 23 km deep · 94 km away
- 3.2129 km W of Adak, Alaska · 3280 days ago · 10 km deep · 97 km away
- 2.4123 km WSW of Adak, Alaska · 3280 days ago · 12 km deep · 90 km away
- 1.945 km WSW of Adak, Alaska · 3280 days ago · 42 km deep · 10 km away
- 2.2Andreanof Islands, Aleutian Islands, Alaska · 3280 days ago · 15 km deep · 52 km away
- 2.964 km WSW of Adak, Alaska · 3279 days ago · 31 km deep · 24 km away
The first 60 of at least 200.
Before
- 1.8127 km W of Adak, Alaska · 3294 days ago · 14 km deep · 95 km away
- 2.792 km WSW of Adak, Alaska · 3294 days ago · 19 km deep · 60 km away
- 1.9125 km WSW of Adak, Alaska · 3294 days ago · 16 km deep · 92 km away
- 3.9130 km WSW of Adak, Alaska · 3294 days ago · 11 km deep · 93 km away
- 1.965 km SE of Adak, Alaska · 3295 days ago · 35 km deep · 80 km away
- 1.648 km S of Adak, Alaska · 3295 days ago · 21 km deep · 40 km away
- 1.9129 km WSW of Adak, Alaska · 3295 days ago · 13 km deep · 94 km away
- 2.362 km S of Adak, Alaska · 3295 days ago · 13 km deep · 51 km away
- 2.297 km W of Adak, Alaska · 3295 days ago · 93 km deep · 73 km away
- 2.879 km SE of Adak, Alaska · 3295 days ago · 35 km deep · 86 km away
- 2.358 km ESE of Adak, Alaska · 3296 days ago · 45 km deep · 84 km away
- 1.563 km SW of Adak, Alaska · 3296 days ago · 19 km deep · 21 km away
- 1.9125 km W of Adak, Alaska · 3296 days ago · 17 km deep · 93 km away
- 2.373 km SE of Adak, Alaska · 3296 days ago · 44 km deep · 83 km away
- 1.850 km SW of Adak, Alaska · 3298 days ago · 44 km deep · 7 km away
- 2.789 km WSW of Adak, Alaska · 3299 days ago · 27 km deep · 52 km away
- 2.5125 km W of Adak, Alaska · 3299 days ago · 13 km deep · 94 km away
- 2.2128 km W of Adak, Alaska · 3299 days ago · 10 km deep · 99 km away
- 2.6128 km WSW of Adak, Alaska · 3299 days ago · 19 km deep · 96 km away
- 1.8126 km W of Adak, Alaska · 3300 days ago · 28 km deep · 94 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak017cbfyyaf (also filed as ak16988672). Read Fri, Oct 2, 2026, 1:48 AM UTC.