Alaska earthquakes

M2.7 earthquake 141 km S of Unalaska, Alaska

A magnitude 2.7 earthquake struck 141 km S of Unalaska, Alaska on Thu, Feb 13, 2020, 4:43 PM AKST (01:43 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.1 60 km ESE of Nikolski, 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
2.7 (ml), micro
Local time
UTC
2020-02-14 01:43:04 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
52.611° N, 166.741° 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.

Location uncertainty
About 4.0 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.15
Depth from
Operator assigned
Station coverage gap
290°, poorly surrounded by stations
Stations used
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 3.698 km SE of Nikolski, Alaska · 2419 days ago · 10 km deep · 80 km away
  2. 3.097 km S of Unalaska, Alaska · 2415 days ago · 35 km deep · 46 km away
  3. 3.159 km S of Unalaska, Alaska · 2413 days ago · 48 km deep · 83 km away
  4. 3.391 km SE of Nikolski, Alaska · 2413 days ago · 24 km deep · 91 km away
  5. 1.874 km SW of Unalaska, Alaska · 2412 days ago · 10 km deep · 99 km away
  6. 2.571 km SW of Unalaska, Alaska · 2412 days ago · 64 km deep · 88 km away
  7. 1.882 km SSW of Unalaska, Alaska · 2408 days ago · 15 km deep · 60 km away
  8. 3.0136 km ESE of Nikolski, Alaska · 2406 days ago · 10 km deep · 16 km away
  9. 2.6140 km S of Unalaska, Alaska · 2403 days ago · 35 km deep · 2 km away
  10. 2.576 km SE of Unalaska, Alaska · 2395 days ago · 35 km deep · 97 km away
  11. 3.188 km E of Nikolski, Alaska · 2395 days ago · 35 km deep · 62 km away
  12. 2.976 km S of Unalaska, Alaska · 2392 days ago · 35 km deep · 65 km away
  13. 1.884 km S of Unalaska, Alaska · 2382 days ago · 19 km deep · 57 km away
  14. 2.074 km E of Nikolski, Alaska · 2379 days ago · 28 km deep · 79 km away
  15. 4.160 km ESE of Nikolski, Alaska · 2376 days ago · 10 km deep · 92 km away
  16. 2.962 km SW of Unalaska, Alaska · 2375 days ago · 10 km deep · 93 km away
  17. 1.991 km E of Nikolski, Alaska · 2372 days ago · 45 km deep · 66 km away
  18. 1.879 km S of Unalaska, Alaska · 2365 days ago · 20 km deep · 62 km away
  19. 3.581 km SW of Unalaska, Alaska · 2363 days ago · 70 km deep · 87 km away
  20. 1.9114 km SSW of Unalaska, Alaska · 2362 days ago · 26 km deep · 38 km away

Before

  1. 2.2134 km ESE of Nikolski, Alaska · 2424 days ago · 36 km deep · 15 km away
  2. 2.776 km SSW of Unalaska, Alaska · 2426 days ago · 31 km deep · 67 km away
  3. 3.782 km S of Unalaska, Alaska · 2427 days ago · 35 km deep · 59 km away
  4. 3.677 km SSE of Unalaska, Alaska · 2430 days ago · 21 km deep · 82 km away
  5. 3.284 km ESE of Nikolski, Alaska · 2434 days ago · 35 km deep · 63 km away
  6. 2.982 km S of Unalaska, Alaska · 2439 days ago · 35 km deep · 59 km away
  7. 2.956 km SSE of Unalaska, Alaska · 2441 days ago · 61 km deep · 97 km away
  8. 1.6Fox Islands, Aleutian Islands, Alaska · 2442 days ago · 13 km deep · 96 km away
  9. 1.861 km SW of Unalaska, Alaska · 2443 days ago · 25 km deep · 95 km away
  10. 1.978 km SSW of Unalaska, Alaska · 2443 days ago · 43 km deep · 69 km away
  11. 3.367 km S of Unalaska, Alaska · 2446 days ago · 40 km deep · 75 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us600084yy (also filed as ak02022g1as5). Read Wed, Sep 30, 2026, 3:53 AM UTC.