Alaska earthquakes

M3.3 earthquake 171 km E of Atka, Alaska

A magnitude 3.3 earthquake struck 171 km E of Atka, Alaska on Sun, May 24, 2020, 12:53 PM HADT (21:53 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M4.5 184 km E of Atka, Alaska. This one was a foreshock.

More in Alaska

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
3.3 (ml), minor
Local time
UTC
2020-05-24 21:53:21 UTC
Depth
16.5 km (10.2 mi), shallow
Epicenter
52.324° N, 171.702° 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 10.2 km horizontally, 15.2 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
198°, poorly surrounded by stations
Stations used
30

Nearby

Within 100 km, magnitude 1.5 and up: 25 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 3.5156 km ESE of Atka, Alaska · 2318 days ago · 35 km deep · 53 km away
  2. 3.8149 km SW of Nikolski, Alaska · 2316 days ago · 35 km deep · 100 km away
  3. 3.7198 km SW of Nikolski, Alaska · 2311 days ago · 35 km deep · 62 km away
  4. 3.2218 km SW of Nikolski, Alaska · 2309 days ago · 10 km deep · 91 km away
  5. 2.2170 km WSW of Nikolski, Alaska · 2308 days ago · 24 km deep · 38 km away
  6. 1.9135 km ESE of Atka, Alaska · 2308 days ago · 36 km deep · 83 km away
  7. 3.386 km ENE of Atka, Alaska · 2304 days ago · 104 km deep · 86 km away
  8. 2.8139 km E of Atka, Alaska · 2300 days ago · 112 km deep · 34 km away
  9. 3.1161 km W of Nikolski, Alaska · 2291 days ago · 249 km deep · 99 km away
  10. 3.4139 km E of Atka, Alaska · 2290 days ago · 77 km deep · 32 km away
  11. 2.973 km E of Atka, Alaska · 2287 days ago · 61 km deep · 100 km away
  12. 4.5184 km E of Atka, Alaska · 2287 days ago · 57 km deep · 41 km away
  13. 2.0100 km ESE of Atka, Alaska · 2282 days ago · 39 km deep · 89 km away
  14. 3.187 km ESE of Atka, Alaska · 2279 days ago · 170 km deep · 91 km away
  15. 2.2154 km WSW of Nikolski, Alaska · 2268 days ago · 65 km deep · 50 km away
  16. 1.874 km E of Atka, Alaska · 2267 days ago · 9 km deep · 97 km away
  17. 3.5137 km SW of Nikolski, Alaska · 2267 days ago · 35 km deep · 90 km away
  18. 2.286 km ENE of Atka, Alaska · 2266 days ago · 115 km deep · 93 km away
  19. 3.1181 km ESE of Atka, Alaska · 2265 days ago · 35 km deep · 63 km away
  20. 2.3147 km WSW of Nikolski, Alaska · 2265 days ago · 71 km deep · 62 km away
  21. 1.9119 km ESE of Atka, Alaska · 2264 days ago · 46 km deep · 83 km away
  22. 2.6140 km E of Atka, Alaska · 2263 days ago · 35 km deep · 47 km away
  23. 1.871 km E of Atka, Alaska · 2263 days ago · 200 km deep · 100 km away
  24. 1.6108 km ESE of Atka, Alaska · 2262 days ago · 10 km deep · 82 km away
  25. 3.2210 km ESE of Atka, Alaska · 2261 days ago · 26 km deep · 75 km away

Before

  1. 3.8136 km WSW of Nikolski, Alaska · 2320 days ago · 54 km deep · 76 km away
  2. 2.678 km E of Atka, Alaska · 2325 days ago · 35 km deep · 94 km away
  3. 2.879 km ENE of Atka, Alaska · 2329 days ago · 272 km deep · 94 km away
  4. 3.4159 km WSW of Nikolski, Alaska · 2333 days ago · 35 km deep · 47 km away
  5. 3.4179 km ESE of Atka, Alaska · 2336 days ago · 39 km deep · 60 km away
  6. 3.7173 km WSW of Nikolski, Alaska · 2336 days ago · 57 km deep · 32 km away
  7. 3.777 km E of Atka, Alaska · 2341 days ago · 150 km deep · 93 km away
  8. 3.0186 km SW of Nikolski, Alaska · 2342 days ago · 37 km deep · 58 km away

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000a63b (also filed as ak0206o5qtwn). Read Tue, Sep 29, 2026, 4:31 PM UTC.