Alaska earthquakes

M2.3 earthquake 193 km SSE of Unalaska, Alaska

A magnitude 2.3 earthquake struck 193 km SSE of Unalaska, Alaska on Wed, Aug 9, 2017, 6:24 AM AKDT (14:24 UTC), 25 km (16 mi) below the surface.

A larger quake followed: M4.3 120 km SSE of Unalaska, Alaska. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.3 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2017-08-09 14:24:04 UTC
Depth
25.3 km (15.7 mi), shallow
Epicenter
52.400° N, 164.989° 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
27

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 1.8south of the Aleutian Islands · 3341 days ago · 26 km deep · 17 km away
  2. 2.1113 km SE of Unalaska, Alaska · 3339 days ago · 24 km deep · 80 km away
  3. 2.1191 km SSE of Unalaska, Alaska · 3323 days ago · 20 km deep · 18 km away
  4. 2.3137 km S of Unalaska, Alaska · 3323 days ago · 11 km deep · 97 km away
  5. 2.0137 km SSE of Akutan, Alaska · 3321 days ago · 9 km deep · 79 km away
  6. 3.5118 km SSE of Unalaska, Alaska · 3321 days ago · 11 km deep · 75 km away
  7. 2.4209 km SSE of Unalaska, Alaska · 3312 days ago · 11 km deep · 21 km away
  8. 1.997 km SE of Unalaska, Alaska · 3311 days ago · 4 km deep · 97 km away
  9. 2.3130 km SSE of Akutan, Alaska · 3311 days ago · 48 km deep · 87 km away
  10. 3.3183 km SE of Akutan, Alaska · 3308 days ago · 58 km deep · 91 km away
  11. 2.3197 km SE of Akutan, Alaska · 3308 days ago · 7 km deep · 89 km away
  12. 2.8193 km SSE of Unalaska, Alaska · 3298 days ago · 14 km deep · 7 km away
  13. 2.5210 km SE of Akutan, Alaska · 3297 days ago · 21 km deep · 71 km away
  14. 2.5175 km SE of Akutan, Alaska · 3295 days ago · 29 km deep · 93 km away
  15. 2.3136 km SSE of Akutan, Alaska · 3293 days ago · 6 km deep · 77 km away
  16. 2.4116 km SSE of Unalaska, Alaska · 3292 days ago · 13 km deep · 78 km away
  17. 4.3120 km SSE of Unalaska, Alaska · 3292 days ago · 25 km deep · 74 km away
  18. 2.5187 km SSE of Unalaska, Alaska · 3285 days ago · 20 km deep · 55 km away

Before

  1. 2.1200 km SE of Unalaska, Alaska · 3342 days ago · 6 km deep · 11 km away
  2. 2.0192 km S of Unalaska, Alaska · 3350 days ago · 41 km deep · 74 km away
  3. 2.5198 km SSE of Unalaska, Alaska · 3355 days ago · 10 km deep · 13 km away
  4. 2.8138 km SE of Akutan, Alaska · 3362 days ago · 17 km deep · 87 km away
  5. 3.0145 km SE of Akutan, Alaska · 3362 days ago · 18 km deep · 88 km away
  6. 2.1123 km SE of Akutan, Alaska · 3364 days ago · 4 km deep · 95 km away
  7. 2.4134 km SE of Akutan, Alaska · 3364 days ago · 66 km deep · 90 km away
  8. 2.0164 km SE of Akutan, Alaska · 3368 days ago · 9 km deep · 99 km away
  9. 3.0135 km SE of Akutan, Alaska · 3368 days ago · 8 km deep · 88 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak017a5q8x4b (also filed as ak16489666). Read Fri, Oct 2, 2026, 4:06 PM UTC.