Alaska earthquakes

M2.9 earthquake 115 km SE of Akhiok, Alaska

A magnitude 2.9 earthquake struck 115 km SE of Akhiok, Alaska on Fri, Aug 28, 2020, 7:20 AM AKDT (15:20 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M4.0 88 km SSW of Akhiok, Alaska. This one was a foreshock.

Womens Bay forecastMore in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.9 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2020-08-28 15:20:05 UTC
Depth
2.8 km (1.7 mi), shallow
Epicenter
56.103° N, 153.080° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
2.9ML, local (Richter)Alaska Earthquake CenterPreferred · Preliminary
3.3ML, local (Richter)USGS National Earthquake Information CenterReviewed · ±0.097 · 14 stations

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used
25

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 3.4115 km SE of Akhiok, Alaska · 2226 days ago · 7 km deep · 2 km away
  2. 2.2144 km SSE of Old Harbor, Alaska · 2211 days ago · 13 km deep · 35 km away
  3. 2.046 km SE of Old Harbor, Alaska · 2196 days ago · 3 km deep · 85 km away
  4. 2.596 km SSE of Akhiok, Alaska · 2192 days ago · 31 km deep · 35 km away
  5. 4.088 km SSW of Akhiok, Alaska · 2176 days ago · 43 km deep · 89 km away

Before

  1. 2.8114 km SE of Akhiok, Alaska · 2226 days ago · 5 km deep · 1 km away
  2. 2.543 km SE of Old Harbor, Alaska · 2230 days ago · 7 km deep · 89 km away
  3. 1.640 km SE of Old Harbor, Alaska · 2230 days ago · 17 km deep · 100 km away
  4. 2.4Kodiak Island region, Alaska · 2230 days ago · 1 km deep · 85 km away
  5. 2.135 km SSE of Old Harbor, Alaska · 2232 days ago · 41 km deep · 88 km away
  6. 2.9115 km SE of Akhiok, Alaska · 2238 days ago · 8 km deep · 1 km away
  7. 2.3115 km SE of Akhiok, Alaska · 2238 days ago · 26 km deep · 1 km away
  8. 1.874 km S of Old Harbor, Alaska · 2243 days ago · 36 km deep · 49 km away
  9. 1.570 km S of Akhiok, Alaska · 2243 days ago · 7 km deep · 60 km away
  10. 2.948 km SSE of Akhiok, Alaska · 2243 days ago · 25 km deep · 72 km away · felt by 1
  11. 1.640 km SSE of Akhiok, Alaska · 2244 days ago · 23 km deep · 76 km away
  12. 2.180 km SE of Akhiok, Alaska · 2246 days ago · 38 km deep · 40 km away
  13. 2.245 km SE of Old Harbor, Alaska · 2255 days ago · 2 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020b2tkfki (also filed as us7000behl). Read Fri, Oct 2, 2026, 5:57 PM UTC.