Alaska earthquakes

M2.0 earthquake 115 km ENE of Chignik, Alaska

A magnitude 2.0 earthquake struck 115 km ENE of Chignik, Alaska on Sun, Aug 20, 2023, 1:51 AM AKDT (09:51 UTC), 47 km (29 mi) below the surface.

A larger quake followed: M3.6 107 km E of Chignik, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
2.0 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2023-08-20 09:51:45 UTC
Depth
46.5 km (28.9 mi), shallow
Epicenter
56.539° N, 156.584° W
Region
Alaska
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Stations used
51

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 77 in the 60 days after this one and 48 in the 30 days before it.

After

The first 60 of 77.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak023anucg2u. Read Thu, Oct 1, 2026, 4:17 AM UTC.