M1.8 earthquake 126 km W of Adak, Alaska
A magnitude 1.8 earthquake struck 126 km W of Adak, Alaska on Mon, Sep 18, 2017, 2:47 PM HADT (23:47 UTC), 28 km (17 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
- 1.8 (ML, local (Richter)), micro
- Magnitude from
- Alaska Earthquake Center
- Local time
- UTC
- 2017-09-18 23:47:34 UTC
- Depth
- 27.8 km (17.3 mi), shallow
- Epicenter
- 51.673° N, 178.432° 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 156 in the 30 days before it.
After
- 2.1189 km WSW of Adak, Alaska · 3300 days ago · 34 km deep · 67 km away
- 3.0196 km WSW of Adak, Alaska · 3300 days ago · 6 km deep · 84 km away
- 2.6128 km WSW of Adak, Alaska · 3299 days ago · 19 km deep · 3 km away
- 2.2128 km W of Adak, Alaska · 3299 days ago · 10 km deep · 9 km away
- 2.8152 km W of Adak, Alaska · 3299 days ago · 206 km deep · 51 km away
- 2.5125 km W of Adak, Alaska · 3299 days ago · 13 km deep · 2 km away
- 2.789 km WSW of Adak, Alaska · 3299 days ago · 27 km deep · 44 km away
- 4.0156 km WNW of Adak, Alaska · 3298 days ago · 204 km deep · 78 km away
- 1.850 km SW of Adak, Alaska · 3298 days ago · 44 km deep · 89 km away
- 1.9125 km W of Adak, Alaska · 3296 days ago · 17 km deep · 1 km away
- 1.563 km SW of Adak, Alaska · 3296 days ago · 19 km deep · 76 km away
- 2.297 km W of Adak, Alaska · 3295 days ago · 93 km deep · 33 km away
- 1.9129 km WSW of Adak, Alaska · 3295 days ago · 13 km deep · 9 km away
- 1.7156 km WSW of Adak, Alaska · 3295 days ago · 34 km deep · 62 km away
- 1.8167 km W of Adak, Alaska · 3294 days ago · 7 km deep · 43 km away
- 1.7131 km W of Adak, Alaska · 3294 days ago · 16 km deep · 11 km away
- 2.3212 km W of Adak, Alaska · 3294 days ago · 87 km deep · 88 km away
- 3.9130 km WSW of Adak, Alaska · 3294 days ago · 11 km deep · 25 km away
- 1.9125 km WSW of Adak, Alaska · 3294 days ago · 16 km deep · 6 km away
- 2.792 km WSW of Adak, Alaska · 3294 days ago · 19 km deep · 34 km away
- 1.8127 km W of Adak, Alaska · 3294 days ago · 14 km deep · 1 km away
- 1.943 km SW of Adak, Alaska · 3294 days ago · 47 km deep · 94 km away
- 2.0128 km W of Adak, Alaska · 3293 days ago · 16 km deep · 4 km away
- 1.9103 km WSW of Adak, Alaska · 3293 days ago · 43 km deep · 37 km away
- 1.9126 km W of Adak, Alaska · 3292 days ago · 17 km deep · 7 km away
- 2.0123 km WSW of Adak, Alaska · 3292 days ago · 13 km deep · 5 km away
- 1.8123 km W of Adak, Alaska · 3292 days ago · 18 km deep · 4 km away
- 2.0209 km W of Adak, Alaska · 3292 days ago · 71 km deep · 83 km away
- 1.970 km SW of Adak, Alaska · 3291 days ago · 54 km deep · 72 km away
- 1.7126 km WSW of Adak, Alaska · 3291 days ago · 13 km deep · 1 km away
- 1.5Andreanof Islands, Aleutian Islands, Alaska · 3291 days ago · 16 km deep · 4 km away
- 1.569 km WSW of Adak, Alaska · 3291 days ago · 69 km deep · 64 km away
- 1.5108 km WSW of Adak, Alaska · 3291 days ago · 44 km deep · 23 km away
- 2.3126 km WSW of Adak, Alaska · 3291 days ago · 7 km deep · 4 km away
- 3.3126 km W of Adak, Alaska · 3290 days ago · 13 km deep · 1 km away
- 1.6122 km WSW of Adak, Alaska · 3290 days ago · 12 km deep · 5 km away
- 1.6135 km W of Adak, Alaska · 3290 days ago · 15 km deep · 11 km away
- 2.8128 km WSW of Adak, Alaska · 3290 days ago · 16 km deep · 20 km away
- 3.0134 km WSW of Adak, Alaska · 3289 days ago · 14 km deep · 14 km away
- 2.7125 km WSW of Adak, Alaska · 3289 days ago · 16 km deep · 14 km away
- 1.6158 km WSW of Adak, Alaska · 3289 days ago · 47 km deep · 53 km away
- 2.2124 km WSW of Adak, Alaska · 3289 days ago · 7 km deep · 6 km away
- 3.1123 km WSW of Adak, Alaska · 3289 days ago · 13 km deep · 5 km away
- 1.6112 km WSW of Adak, Alaska · 3288 days ago · 25 km deep · 31 km away
- 2.095 km WSW of Adak, Alaska · 3288 days ago · 42 km deep · 45 km away
- 1.5126 km W of Adak, Alaska · 3288 days ago · 7 km deep · 4 km away
- 1.5125 km W of Adak, Alaska · 3288 days ago · 14 km deep · 6 km away
- 2.1130 km WSW of Adak, Alaska · 3288 days ago · 11 km deep · 12 km away
- 1.9130 km W of Adak, Alaska · 3287 days ago · 15 km deep · 7 km away
- 2.3124 km W of Adak, Alaska · 3286 days ago · 12 km deep · 3 km away
- 2.3123 km W of Adak, Alaska · 3286 days ago · 5 km deep · 3 km away
- 2.1124 km W of Adak, Alaska · 3286 days ago · 15 km deep · 2 km away
- 2.1124 km WSW of Adak, Alaska · 3286 days ago · 11 km deep · 6 km away
- 2.7121 km WSW of Adak, Alaska · 3286 days ago · 14 km deep · 26 km away
- 2.4220 km W of Adak, Alaska · 3286 days ago · 77 km deep · 95 km away
- 2.6122 km WSW of Adak, Alaska · 3286 days ago · 19 km deep · 38 km away
- 2.7124 km WSW of Adak, Alaska · 3285 days ago · 20 km deep · 15 km away
- 2.173 km SW of Adak, Alaska · 3285 days ago · 25 km deep · 69 km away
- 2.4189 km WSW of Adak, Alaska · 3284 days ago · 25 km deep · 71 km away
- 2.8116 km WSW of Adak, Alaska · 3284 days ago · 20 km deep · 41 km away
The first 60 of at least 200.
Before
- 3.0175 km W of Adak, Alaska · 3300 days ago · 121 km deep · 66 km away
- 4.177 km WSW of Adak, Alaska · 3300 days ago · 71 km deep · 48 km away
- 4.1127 km WSW of Adak, Alaska · 3301 days ago · 14 km deep · 15 km away
- 2.7127 km WSW of Adak, Alaska · 3301 days ago · 14 km deep · 18 km away
- 2.686 km WSW of Adak, Alaska · 3302 days ago · 34 km deep · 53 km away
- 2.2129 km WSW of Adak, Alaska · 3302 days ago · 13 km deep · 4 km away
- 1.7128 km W of Adak, Alaska · 3302 days ago · 16 km deep · 3 km away
- 2.6147 km SW of Adak, Alaska · 3302 days ago · 22 km deep · 81 km away
- 2.3130 km WSW of Adak, Alaska · 3303 days ago · 23 km deep · 45 km away
- 2.0128 km W of Adak, Alaska · 3303 days ago · 14 km deep · 6 km away
- 1.9124 km WSW of Adak, Alaska · 3305 days ago · 21 km deep · 7 km away
- 3.2126 km WSW of Adak, Alaska · 3305 days ago · 13 km deep · 8 km away
- 2.3126 km WSW of Adak, Alaska · 3305 days ago · 13 km deep · 6 km away
- 1.7124 km WSW of Adak, Alaska · 3305 days ago · 10 km deep · 3 km away
- 2.8134 km WSW of Adak, Alaska · 3305 days ago · 44 km deep · 40 km away
- 2.0127 km WSW of Adak, Alaska · 3305 days ago · 37 km deep · 32 km away
- 2.378 km WSW of Adak, Alaska · 3306 days ago · 57 km deep · 55 km away
- 3.5130 km W of Adak, Alaska · 3306 days ago · 10 km deep · 4 km away
- 2.4125 km W of Adak, Alaska · 3307 days ago · 14 km deep · 2 km away
- 2.0128 km WSW of Adak, Alaska · 3307 days ago · 10 km deep · 3 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event ak017c018p41 (also filed as ak16852839). Read Fri, Oct 2, 2026, 2:10 AM UTC.