Alaska earthquakes

M3.9 earthquake 124 km SE of Old Harbor, Alaska

A magnitude 3.9 earthquake struck 124 km SE of Old Harbor, Alaska on Sat, Dec 21, 2019, 11:41 AM AKST (20:41 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M5.0 217 km SSE of Old Harbor, Alaska. This one was a foreshock.

Womens Bay forecast More in Alaska

Map

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

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The earthquake

Magnitude: 3.9 (ml), minor
Local time: Sat, Dec 21, 2019, 11:41 AM AKST
UTC: 2019-12-21 20:41:34 UTC
Depth: 11.8 km (7.3 mi), shallow
Epicenter: 56.298° N, 152.101° 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.

Stations used: 127

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 32 in the 60 days after this one and 6 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak019gbfxsa2 (also filed as ak019gbfxq70, us70006pjx). Read Mon, Sep 28, 2026, 11:35 PM UTC.