Alaska earthquakes

M1.6 earthquake 1 km SSW of Susitna, Alaska

A magnitude 1.6 earthquake struck 1 km SSW of Susitna, Alaska on Thu, Jul 15, 2021, 2:00 PM AKDT (22:00 UTC), 54 km (33 mi) below the surface.

A larger quake followed: M4.3 30 km WNW of Willow, Alaska. This one was a foreshock.

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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
2021-07-15 22:00:57 UTC
Depth
53.5 km (33.2 mi), shallow
Epicenter
61.533° N, 150.518° 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
50

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 200 in the 60 days after this one and 133 in the 30 days before it.

After

The first 60 of at least 200.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak02190ifoi5. Read Sun, Sep 27, 2026, 7:19 PM UTC.