Alaska earthquakes

M2.9 earthquake 190 km SSE of Akutan, Alaska

A magnitude 2.9 earthquake struck 190 km SSE of Akutan, Alaska on Mon, Sep 18, 2023, 3:36 AM AKDT (11:36 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.3 244 km SE of Akutan, 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
2.9 (ml), micro
Local time
UTC
2023-09-18 11:36:43 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
52.587° N, 164.552° 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.

Location uncertainty
About 4.2 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
240°, poorly surrounded by stations
Stations used
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 10 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000lcbj (also filed as ak023bzu15vu). Read Wed, Sep 30, 2026, 12:37 PM UTC.