Alaska earthquakes

M5.0 earthquake 87 km S of Atka, Alaska

A magnitude 5.0 earthquake struck 87 km S of Atka, Alaska on Sat, Aug 2, 1986, 5:39 PM HADT (02:39 UTC), 33 km (21 mi) below the surface.

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The earthquake

Magnitude
5.0 (mb), moderate
Local time
UTC
1986-08-03 02:39:28 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.408° N, 174.163° 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.

Depth from
OPERATOR_ASSIGNED

Nearby

Within 100 km, magnitude 2.0 and up: 6 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 4.3Andreanof Islands, Aleutian Islands, Alaska · 14654 days ago · 33 km deep · 41 km away
  2. 4.888 km SW of Atka, Alaska · 14649 days ago · 33 km deep · 76 km away
  3. 4.488 km SW of Atka, Alaska · 14631 days ago · 33 km deep · 75 km away
  4. 4.1108 km SE of Adak, Alaska · 14605 days ago · 33 km deep · 86 km away
  5. 4.199 km SW of Atka, Alaska · 14604 days ago · 33 km deep · 71 km away
  6. 5.0110 km SSW of Atka, Alaska · 14603 days ago · 33 km deep · 57 km away

Before

  1. 4.795 km SSW of Atka, Alaska · 14661 days ago · 33 km deep · 41 km away
  2. 4.571 km S of Atka, Alaska · 14662 days ago · 33 km deep · 16 km away
  3. 4.986 km S of Atka, Alaska · 14662 days ago · 33 km deep · 4 km away
  4. 4.889 km S of Atka, Alaska · 14662 days ago · 33 km deep · 6 km away
  5. 5.492 km S of Atka, Alaska · 14662 days ago · 33 km deep · 9 km away
  6. 4.4Andreanof Islands, Aleutian Islands, Alaska · 14666 days ago · 33 km deep · 85 km away
  7. 4.785 km SW of Atka, Alaska · 14666 days ago · 33 km deep · 81 km away
  8. 5.588 km WSW of Atka, Alaska · 14666 days ago · 33 km deep · 89 km away
  9. 5.4Andreanof Islands, Aleutian Islands, Alaska · 14667 days ago · 33 km deep · 22 km away
  10. 4.993 km SW of Atka, Alaska · 14670 days ago · 33 km deep · 81 km away
  11. 4.631 km SW of Atka, Alaska · 14674 days ago · 33 km deep · 74 km away
  12. 4.0101 km SW of Atka, Alaska · 14675 days ago · 33 km deep · 70 km away
  13. 4.888 km SSW of Atka, Alaska · 14677 days ago · 33 km deep · 29 km away
  14. 4.5Andreanof Islands, Aleutian Islands, Alaska · 14686 days ago · 33 km deep · 69 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002wu6. Read Tue, Sep 22, 2026, 10:27 PM UTC.