Alaska earthquakes

M4.4 earthquake 88 km SW of Atka, Alaska

A magnitude 4.4 earthquake struck 88 km SW of Atka, Alaska on Mon, Sep 1, 1986, 9:46 AM HADT (18:46 UTC), 33 km (21 mi) below the surface.

A larger quake followed: M5.6 90 km SW of Atka, Alaska. This one was a foreshock.

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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
4.4 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1986-09-01 18:46:53 UTC
Depth
33.0 km (20.5 mi), shallow
Epicenter
51.670° N, 175.167° 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 1.5 and up: 15 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 4.1108 km SE of Adak, Alaska · 14617 days ago · 33 km deep · 46 km away
  2. 4.199 km SW of Atka, Alaska · 14617 days ago · 33 km deep · 15 km away
  3. 5.0110 km SSW of Atka, Alaska · 14616 days ago · 33 km deep · 41 km away
  4. 5.445 km ESE of Adak, Alaska · 14614 days ago · 33 km deep · 58 km away
  5. 4.977 km SSE of Adak, Alaska · 14610 days ago · 33 km deep · 81 km away
  6. 5.225 km E of Adak, Alaska · 14609 days ago · 43 km deep · 78 km away
  7. 4.579 km SE of Adak, Alaska · 14609 days ago · 33 km deep · 52 km away
  8. 4.767 km SE of Adak, Alaska · 14608 days ago · 33 km deep · 50 km away
  9. 5.690 km SW of Atka, Alaska · 14597 days ago · 33 km deep · 11 km away
  10. 4.4136 km SE of Adak, Alaska · 14597 days ago · 33 km deep · 74 km away
  11. 4.697 km SSW of Atka, Alaska · 14595 days ago · 33 km deep · 42 km away
  12. 4.8120 km SSW of Atka, Alaska · 14595 days ago · 33 km deep · 64 km away
  13. 4.7102 km SSE of Adak, Alaska · 14590 days ago · 33 km deep · 84 km away
  14. 4.824 km SE of Atka, Alaska · 14588 days ago · 33 km deep · 96 km away
  15. 4.868 km SE of Adak, Alaska · 14584 days ago · 33 km deep · 48 km away

Before

  1. 4.364 km ESE of Adak, Alaska · 14655 days ago · 33 km deep · 40 km away
  2. 4.237 km E of Adak, Alaska · 14657 days ago · 33 km deep · 67 km away
  3. 4.888 km SW of Atka, Alaska · 14662 days ago · 33 km deep · 1 km away
  4. 4.3Andreanof Islands, Aleutian Islands, Alaska · 14667 days ago · 33 km deep · 48 km away
  5. 5.087 km S of Atka, Alaska · 14673 days ago · 33 km deep · 75 km away
  6. 4.795 km SSW of Atka, Alaska · 14674 days ago · 33 km deep · 41 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002xra. Read Mon, Oct 5, 2026, 9:26 AM UTC.