Alaska earthquakes

M2.1 earthquake 191 km SSE of Unalaska, Alaska

A magnitude 2.1 earthquake struck 191 km SSE of Unalaska, Alaska on Sun, Aug 27, 2017, 7:40 AM AKDT (15:40 UTC), 20 km (12 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
2.1 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2017-08-27 15:40:36 UTC
Depth
20.0 km (12.4 mi), shallow
Epicenter
52.342° N, 165.236° 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
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 19 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.0129 km S of Unalaska, Alaska · 3322 days ago · 5 km deep · 92 km away
  2. 2.3137 km S of Unalaska, Alaska · 3322 days ago · 11 km deep · 83 km away
  3. 2.0137 km SSE of Akutan, Alaska · 3321 days ago · 9 km deep · 90 km away
  4. 3.5118 km SSE of Unalaska, Alaska · 3321 days ago · 11 km deep · 73 km away
  5. 3.7200 km SE of Nikolski, Alaska · 3313 days ago · 25 km deep · 91 km away
  6. 3.6219 km SE of Nikolski, Alaska · 3313 days ago · 10 km deep · 89 km away
  7. 2.4209 km SSE of Unalaska, Alaska · 3311 days ago · 11 km deep · 18 km away
  8. 1.997 km SE of Unalaska, Alaska · 3311 days ago · 4 km deep · 96 km away
  9. 2.3130 km SSE of Akutan, Alaska · 3310 days ago · 48 km deep · 99 km away
  10. 2.1126 km S of Unalaska, Alaska · 3306 days ago · 39 km deep · 99 km away
  11. 2.8193 km SSE of Unalaska, Alaska · 3297 days ago · 14 km deep · 11 km away
  12. 2.5210 km SE of Akutan, Alaska · 3297 days ago · 21 km deep · 89 km away
  13. 2.3136 km SSE of Akutan, Alaska · 3293 days ago · 6 km deep · 89 km away
  14. 2.4116 km SSE of Unalaska, Alaska · 3292 days ago · 13 km deep · 76 km away
  15. 4.3120 km SSE of Unalaska, Alaska · 3292 days ago · 25 km deep · 72 km away
  16. 2.5187 km SSE of Unalaska, Alaska · 3285 days ago · 20 km deep · 37 km away
  17. 2.7180 km SSE of Akutan, Alaska · 3277 days ago · 10 km deep · 55 km away
  18. 2.6230 km SSE of Akutan, Alaska · 3265 days ago · 10 km deep · 91 km away
  19. 3.3117 km SSE of Akutan, Alaska · 3265 days ago · 29 km deep · 86 km away

Before

  1. 1.7134 km S of Unalaska, Alaska · 3328 days ago · 24 km deep · 92 km away
  2. 2.3140 km S of Unalaska, Alaska · 3337 days ago · 26 km deep · 100 km away
  3. 2.1113 km SE of Unalaska, Alaska · 3339 days ago · 24 km deep · 80 km away
  4. 1.8south of the Aleutian Islands · 3341 days ago · 26 km deep · 23 km away
  5. 2.3193 km SSE of Unalaska, Alaska · 3341 days ago · 25 km deep · 18 km away
  6. 2.1200 km SE of Unalaska, Alaska · 3341 days ago · 6 km deep · 28 km away
  7. 2.0192 km S of Unalaska, Alaska · 3349 days ago · 41 km deep · 56 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak017azim3js (also filed as ak16765303). Read Fri, Oct 2, 2026, 7:08 AM UTC.