Alaska earthquakes

M4.0 earthquake 50 km SW of Nanwalek, Alaska

A magnitude 4.0 earthquake struck 50 km SW of Nanwalek, Alaska on Thu, Jun 26, 1986, 11:22 PM AKDT (07:22 UTC), 71 km (44 mi) below the surface.

A larger quake followed: M4.3 84 km NNW of Aleneva, 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
4.0 (mb), light
Local time
UTC
1986-06-27 07:22:33 UTC
Depth
70.8 km (44.0 mi), intermediate-depth
Epicenter
59.016° N, 152.505° 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.

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 4.384 km NNW of Aleneva, Alaska · 14688 days ago · 83 km deep · 51 km away

Before

  1. 3.620 km WSW of Anchor Point, Alaska · 14698 days ago · 23 km deep · 81 km away
  2. 4.340 km E of Pedro Bay, Alaska · 14719 days ago · 146 km deep · 95 km away
  3. 4.529 km SSW of Nanwalek, Alaska · 14727 days ago · 61 km deep · 23 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002vf5. Read Tue, Sep 22, 2026, 9:35 PM UTC.