Alaska earthquakes

M5.1 earthquake 21 km N of Susitna, Alaska

A magnitude 5.1 earthquake struck 21 km N of Susitna, Alaska on Fri, Aug 28, 1981, 12:04 AM GMT-9 (09:04 UTC), 71 km (44 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
5.1 (mb), moderate
Local time
UTC
1981-08-28 09:04:24 UTC
Depth
70.9 km (44.1 mi), intermediate-depth
Epicenter
61.738° N, 150.452° 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 2.1 and up: 9 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 3.024 km ENE of Susitna North, Alaska · 16450 days ago · 33 km deep · 79 km away
  2. 3.133 km E of Chase, Alaska · 16443 days ago · 33 km deep · 99 km away
  3. 3.025 km ESE of Susitna North, Alaska · 16440 days ago · 33 km deep · 66 km away
  4. 3.210 km SW of Susitna North, Alaska · 16437 days ago · 33 km deep · 47 km away
  5. 4.729 km N of Fishhook, Alaska · 16432 days ago · 58 km deep · 70 km away
  6. 3.727 km E of Skwentna, Alaska · 16431 days ago · 73 km deep · 34 km away
  7. 4.225 km NE of Skwentna, Alaska · 16423 days ago · 105 km deep · 58 km away
  8. 3.18 km NNW of Sutton-Alpine, Alaska · 16420 days ago · 26 km deep · 85 km away
  9. 3.25 km WSW of Susitna, Alaska · 16404 days ago · 33 km deep · 25 km away

Before

  1. 4.327 km W of Susitna, Alaska · 16467 days ago · 72 km deep · 39 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001fhv. Read Tue, Sep 22, 2026, 12:10 PM UTC.