Alaska earthquakes

M1.6 earthquake 6 km ENE of Tyonek, Alaska

A magnitude 1.6 earthquake struck 6 km ENE of Tyonek, Alaska on Tue, May 15, 2018, 4:27 PM AKDT (00:27 UTC), 56 km (35 mi) below the surface.

A larger quake followed: M4.2 25 km SW of Susitna, 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, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2018-05-16 00:27:22 UTC
Depth
55.7 km (34.6 mi), shallow
Epicenter
61.081° N, 151.019° 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
70

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 198 in the 60 days after this one and 138 in the 30 days before it.

After

The first 60 of 198.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak01868x9191 (also filed as ak19565854). Read Fri, Oct 2, 2026, 2:10 PM UTC.