Alaska earthquakes

M2.9 earthquake 197 km SSE of Unalaska, Alaska

A magnitude 2.9 earthquake struck 197 km SSE of Unalaska, Alaska on Thu, Mar 30, 2023, 9:14 PM AKDT (05:14 UTC), 20 km (12 mi) below the surface.

A larger quake followed: M3.4 137 km ESE of Nikolski, Alaska. This one was a foreshock.

Unalaska forecastMore in Alaska

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
2.9 (ml), micro
Local time
UTC
2023-03-31 05:14:53 UTC
Depth
19.7 km (12.3 mi), shallow
Epicenter
52.187° N, 165.633° 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 8.0 km horizontally, 8.9 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
229°, poorly surrounded by stations
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: 19 in the 60 days after this one and 4 in the 30 days before it.

After

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000k2hn (also filed as ak02344xfn6d). Read Tue, Sep 29, 2026, 7:48 PM UTC.