Alaska earthquakes

M1.6 earthquake 21 km SW of Skwentna, Alaska

A magnitude 1.6 earthquake struck 21 km SW of Skwentna, Alaska on Mon, Feb 17, 2020, 4:21 AM AKST (13:21 UTC), 79 km (49 mi) below the surface.

A larger quake followed: M3.5 Central 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
1.6 (ml), micro
Local time
UTC
2020-02-17 13:21:41 UTC
Depth
78.5 km (48.8 mi), intermediate-depth
Epicenter
61.837° N, 151.636° 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
45

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 126 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak02027lnvrp. Read Wed, Sep 30, 2026, 1:11 AM UTC.