Alaska earthquakes

M3.9 earthquake 191 km S of Adak, Alaska

A magnitude 3.9 earthquake struck 191 km S of Adak, Alaska on Sun, Mar 10, 2024, 8:25 AM HADT (17:25 UTC), 10 km (6 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
3.9 (mb, body-wave), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2024-03-10 17:25:07 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.177° N, 176.177° W
Region
Alaska
Tsunami flag
No
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
3.9mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed · ±0.138 · 14 stations
3.4ML, local (Richter)Alaska Earthquake CenterPreliminary

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 4.5 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.14
Depth from
Operator assigned
Station coverage gap
234°, poorly surrounded by stations
Stations used
44

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 2.9189 km S of Adak, Alaska · 936 days ago · 17 km deep · 55 km away
  2. 2.4174 km SE of Adak, Alaska · 927 days ago · 10 km deep · 86 km away
  3. 2.6184 km S of Adak, Alaska · 926 days ago · 10 km deep · 8 km away
  4. 2.5172 km SSE of Adak, Alaska · 925 days ago · 10 km deep · 26 km away
  5. 2.298 km SSE of Adak, Alaska · 916 days ago · 16 km deep · 94 km away
  6. 2.8172 km SSW of Adak, Alaska · 897 days ago · 10 km deep · 93 km away
  7. 2.595 km S of Adak, Alaska · 896 days ago · 10 km deep · 96 km away
  8. 1.792 km S of Adak, Alaska · 896 days ago · 5 km deep · 100 km away
  9. 2.5168 km S of Adak, Alaska · 896 days ago · 10 km deep · 23 km away
  10. 3.0202 km S of Adak, Alaska · 885 days ago · 10 km deep · 63 km away

Before

  1. 3.1192 km SE of Adak, Alaska · 948 days ago · 10 km deep · 95 km away
  2. 2.8202 km SSW of Atka, Alaska · 963 days ago · 6 km deep · 98 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000mj2u (also filed as ak024381w1pr). Read Fri, Oct 2, 2026, 1:49 PM UTC.