Alaska earthquakes

M2.5 earthquake 16 km SE of Susitna, Alaska

A magnitude 2.5 earthquake struck 16 km SE of Susitna, Alaska on Tue, Oct 16, 2018, 9:03 AM AKDT (17:03 UTC), 51 km (32 mi) below the surface.

A larger quake followed: M7.1 1 km SE of Point MacKenzie, 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: 2.5 (ml), micro
Local time: Tue, Oct 16, 2018, 9:03 AM AKDT
UTC: 2018-10-16 17:03:14 UTC
Depth: 50.9 km (31.6 mi), shallow
Epicenter: 61.454° N, 150.257° 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: 92

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 202 in the 60 days after this one and 118 in the 30 days before it.

After

The first 60 of at least 202.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak018da8gca4 (also filed as ak20284830, us1000hcz4). Read Wed, Sep 30, 2026, 5:46 AM UTC.