Alaska earthquakes

M1.6 earthquake 50 km SW of Nanwalek, Alaska

A magnitude 1.6 earthquake struck 50 km SW of Nanwalek, Alaska on Tue, Aug 28, 2018, 11:19 AM AKDT (19:19 UTC), 65 km (40 mi) below the surface.

A larger quake followed: M3.9 50 km E of Pedro Bay, 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: Tue, Aug 28, 2018, 11:19 AM AKDT
UTC: 2018-08-28 19:19:40 UTC
Depth: 64.9 km (40.3 mi), shallow
Epicenter: 59.072° N, 152.601° 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: 31

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 201 in the 60 days after this one and 136 in the 30 days before it.

After

The first 60 of at least 201.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak018b18eorc (also filed as ak20269285). Read Tue, Sep 29, 2026, 6:20 PM UTC.