Alaska earthquakes

M2.5 earthquake 218 km SE of Akutan, Alaska

A magnitude 2.5 earthquake struck 218 km SE of Akutan, Alaska on Sat, Apr 17, 2021, 11:37 PM AKDT (07:37 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.9 149 km S of False Pass, 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
2.5 (ml), micro
Local time
UTC
2021-04-18 07:37:14 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
52.706° N, 163.511° 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 3.4 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
238°, poorly surrounded by stations
Stations used
32

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 16 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 2.2237 km S of False Pass, Alaska · 1984 days ago · 3 km deep · 55 km away
  2. 3.9149 km S of False Pass, Alaska · 1980 days ago · 18 km deep · 90 km away
  3. 3.0152 km S of False Pass, Alaska · 1980 days ago · 10 km deep · 87 km away
  4. 2.6160 km S of False Pass, Alaska · 1979 days ago · 10 km deep · 79 km away
  5. 2.8151 km S of False Pass, Alaska · 1977 days ago · 10 km deep · 90 km away
  6. 2.2154 km SE of Akutan, Alaska · 1977 days ago · 5 km deep · 68 km away
  7. 1.9141 km SE of Akutan, Alaska · 1977 days ago · 15 km deep · 79 km away
  8. 1.9121 km SE of Akutan, Alaska · 1976 days ago · 51 km deep · 97 km away
  9. 2.7165 km ESE of Akutan, Alaska · 1975 days ago · 20 km deep · 73 km away
  10. 2.2Unimak Island region, Alaska · 1974 days ago · 38 km deep · 67 km away
  11. 2.8133 km SE of Akutan, Alaska · 1969 days ago · 10 km deep · 89 km away
  12. 3.5156 km SSE of False Pass, Alaska · 1960 days ago · 10 km deep · 97 km away
  13. 2.6206 km SSE of False Pass, Alaska · 1952 days ago · 18 km deep · 68 km away
  14. 2.7240 km S of False Pass, Alaska · 1930 days ago · 10 km deep · 32 km away
  15. 2.9233 km SSE of False Pass, Alaska · 1925 days ago · 10 km deep · 72 km away
  16. 3.8140 km S of False Pass, Alaska · 1925 days ago · 35 km deep · 98 km away

Before

  1. 2.8140 km SE of Akutan, Alaska · 2002 days ago · 24 km deep · 79 km away
  2. 2.8152 km S of False Pass, Alaska · 2005 days ago · 10 km deep · 89 km away
  3. 4.3158 km S of False Pass, Alaska · 2005 days ago · 14 km deep · 81 km away
  4. 3.1215 km SSE of False Pass, Alaska · 2007 days ago · 20 km deep · 88 km away
  5. 2.7144 km S of False Pass, Alaska · 2008 days ago · 30 km deep · 94 km away
  6. 2.3133 km SE of Akutan, Alaska · 2011 days ago · 17 km deep · 90 km away
  7. 2.8241 km S of False Pass, Alaska · 2011 days ago · 27 km deep · 41 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000e2gd (also filed as ak0214yqfhej). Read Wed, Sep 23, 2026, 11:54 AM UTC.