Alaska earthquakes

M4.8 earthquake 93 km ENE of Atka, Alaska

A magnitude 4.8 earthquake struck 93 km ENE of Atka, Alaska on Mon, Nov 4, 2019, 9:03 PM HAST (07:03 UTC), 128 km (80 mi) below the surface.

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

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The earthquake

Magnitude
4.8 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2019-11-05 07:03:44 UTC
Depth
128.2 km (79.7 mi), intermediate-depth
Epicenter
52.519° N, 172.935° W
Region
Alaska
Tsunami flag
Yes: a large quake in an oceanic region
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
4.8mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed · ±0.026 · 471 stations
4.7ML, local (Richter)Alaska Earthquake CenterPreliminary
5.0mb, body-waveNOAA National Tsunami Warning CenterReviewed · 54 stations

Tsunami

The USGS flags a quake this large in an oceanic region. The flag does not mean a tsunami happened; the tsunami warning centers decide that, and their messages are below when they issued any.

Current tsunami warnings: tsunami.gov. Warnings in force in the US also appear on our alerts pages.

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 6.8 km horizontally, 4.7 km in depth
Magnitude uncertainty
±0.03
Depth from
From location
Station coverage gap
91°
Stations used
115

Nearby

Within 100 km, magnitude 1.8 and up: 22 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 2.172 km ESE of Atka, Alaska · 2522 days ago · 63 km deep · 65 km away
  2. 2.3103 km ESE of Atka, Alaska · 2514 days ago · 14 km deep · 84 km away
  3. 2.865 km N of Atka, Alaska · 2513 days ago · 200 km deep · 97 km away
  4. 2.8158 km E of Atka, Alaska · 2513 days ago · 33 km deep · 76 km away
  5. 2.067 km SE of Atka, Alaska · 2511 days ago · 32 km deep · 96 km away
  6. 3.716 km NE of Atka, Alaska · 2510 days ago · 195 km deep · 77 km away
  7. 2.372 km ESE of Atka, Alaska · 2509 days ago · 61 km deep · 58 km away
  8. 2.889 km ENE of Atka, Alaska · 2506 days ago · 136 km deep · 17 km away
  9. 2.943 km N of Atka, Alaska · 2505 days ago · 174 km deep · 91 km away
  10. 2.348 km NNE of Atka, Alaska · 2500 days ago · 128 km deep · 59 km away
  11. 2.226 km SE of Atka, Alaska · 2499 days ago · 81 km deep · 84 km away
  12. 2.431 km ESE of Atka, Alaska · 2498 days ago · 9 km deep · 72 km away
  13. 2.790 km ENE of Atka, Alaska · 2493 days ago · 14 km deep · 7 km away
  14. 2.570 km ENE of Atka, Alaska · 2491 days ago · 19 km deep · 24 km away
  15. 2.7134 km E of Atka, Alaska · 2490 days ago · 28 km deep · 72 km away
  16. 2.818 km SSE of Atka, Alaska · 2487 days ago · 211 km deep · 95 km away
  17. 2.261 km ESE of Atka, Alaska · 2486 days ago · 74 km deep · 58 km away
  18. 2.068 km ESE of Atka, Alaska · 2484 days ago · 81 km deep · 57 km away
  19. 2.997 km NNE of Atka, Alaska · 2484 days ago · 219 km deep · 70 km away
  20. 3.5120 km E of Atka, Alaska · 2484 days ago · 35 km deep · 59 km away
  21. 2.167 km E of Atka, Alaska · 2472 days ago · 91 km deep · 39 km away
  22. 2.558 km SE of Atka, Alaska · 2469 days ago · 13 km deep · 96 km away

Before

  1. 3.929 km E of Atka, Alaska · 2523 days ago · 9 km deep · 67 km away
  2. 2.228 km N of Atka, AK · 2525 days ago · 127 km deep · 82 km away
  3. 2.637 km NNW of Atka, Alaska · 2529 days ago · 167 km deep · 94 km away
  4. 3.959 km E of Atka, Alaska · 2532 days ago · 83 km deep · 40 km away
  5. 2.260 km ESE of Atka, Alaska · 2537 days ago · 74 km deep · 61 km away
  6. 2.4146 km ENE of Atka, Alaska · 2538 days ago · 87 km deep · 54 km away
  7. 2.270 km SE of Atka, Alaska · 2539 days ago · 46 km deep · 86 km away
  8. 3.375 km E of Atka, Alaska · 2539 days ago · 10 km deep · 41 km away
  9. 2.373 km ENE of Atka, Alaska · 2539 days ago · 26 km deep · 20 km away
  10. 3.285 km NNE of Atka, Alaska · 2542 days ago · 10 km deep · 58 km away
  11. 2.2117 km ESE of Atka, Alaska · 2551 days ago · 8 km deep · 93 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us700063a8 (also filed as at00q0hia9, ak019e7590g3). Read Thu, Oct 1, 2026, 10:06 PM UTC.