Alaska earthquakes

M3.6 earthquake 95 km SSW of Unalaska, Alaska

A magnitude 3.6 earthquake struck 95 km SSW of Unalaska, Alaska on Tue, Mar 19, 2024, 1:04 AM AKDT (09:04 UTC), 47 km (29 mi) below the surface.

A larger quake followed: M4.6 87 km SSW of Unalaska, 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
3.6 (mb), minor
Local time
UTC
2024-03-19 09:04:02 UTC
Depth
47.0 km (29.2 mi), shallow
Epicenter
53.103° N, 167.148° 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 3.0 km horizontally, 8.7 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
169°
Stations used
68

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 127 in the 60 days after this one and 76 in the 30 days before it.

After

The first 60 of 127.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000mkix (also filed as ak0243msu6kl). Read Mon, Sep 28, 2026, 4:30 PM UTC.