Alaska earthquakes

M2.0 earthquake 192 km S of Unalaska, Alaska

A magnitude 2.0 earthquake struck 192 km S of Unalaska, Alaska on Mon, Jul 31, 2017, 1:25 PM AKDT (21:25 UTC), 41 km (26 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
2.0 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2017-07-31 21:25:42 UTC
Depth
41.4 km (25.7 mi), shallow
Epicenter
52.169° N, 166.012° 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
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 22 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 2.1200 km SE of Unalaska, Alaska · 3341 days ago · 6 km deep · 84 km away
  2. 2.3193 km SSE of Unalaska, Alaska · 3341 days ago · 25 km deep · 74 km away
  3. 1.8south of the Aleutian Islands · 3341 days ago · 26 km deep · 73 km away
  4. 2.4125 km ESE of Nikolski, Alaska · 3339 days ago · 54 km deep · 89 km away
  5. 1.9132 km S of Unalaska, Alaska · 3337 days ago · 26 km deep · 75 km away
  6. 2.3140 km S of Unalaska, Alaska · 3337 days ago · 26 km deep · 65 km away
  7. 1.8126 km SSW of Unalaska, Alaska · 3335 days ago · 66 km deep · 90 km away
  8. 2.2137 km ESE of Nikolski, Alaska · 3329 days ago · 20 km deep · 77 km away
  9. 2.6124 km S of Unalaska, Alaska · 3328 days ago · 8 km deep · 88 km away
  10. 1.7134 km S of Unalaska, Alaska · 3328 days ago · 24 km deep · 64 km away
  11. 2.0158 km ESE of Nikolski, Alaska · 3328 days ago · 8 km deep · 53 km away
  12. 2.1191 km SSE of Unalaska, Alaska · 3323 days ago · 20 km deep · 56 km away
  13. 2.0129 km S of Unalaska, Alaska · 3322 days ago · 5 km deep · 67 km away
  14. 2.3137 km S of Unalaska, Alaska · 3322 days ago · 11 km deep · 58 km away
  15. 3.5118 km SSE of Unalaska, Alaska · 3321 days ago · 11 km deep · 92 km away
  16. 3.7200 km SE of Nikolski, Alaska · 3314 days ago · 25 km deep · 36 km away
  17. 3.6219 km SE of Nikolski, Alaska · 3313 days ago · 10 km deep · 42 km away
  18. 2.4209 km SSE of Unalaska, Alaska · 3311 days ago · 11 km deep · 66 km away
  19. 2.1126 km S of Unalaska, Alaska · 3306 days ago · 39 km deep · 73 km away
  20. 2.8193 km SSE of Unalaska, Alaska · 3297 days ago · 14 km deep · 67 km away
  21. 2.4116 km SSE of Unalaska, Alaska · 3292 days ago · 13 km deep · 93 km away
  22. 4.3120 km SSE of Unalaska, Alaska · 3292 days ago · 25 km deep · 91 km away

Before

  1. 2.5198 km SSE of Unalaska, Alaska · 3355 days ago · 10 km deep · 63 km away
  2. 1.9145 km ESE of Nikolski, Alaska · 3358 days ago · 26 km deep · 66 km away
  3. 2.4135 km ESE of Nikolski, Alaska · 3367 days ago · 13 km deep · 79 km away
  4. 2.3207 km S of Unalaska, Alaska · 3371 days ago · 38 km deep · 15 km away
  5. 3.1173 km SE of Nikolski, Alaska · 3377 days ago · 23 km deep · 73 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0179qyl4k6 (also filed as ak16391910). Read Fri, Oct 2, 2026, 8:10 AM UTC.