Alaska earthquakes

M3.6 earthquake 281 km SE of Chiniak, Alaska

A magnitude 3.6 earthquake struck 281 km SE of Chiniak, Alaska on Fri, Jun 15, 2018, 2:30 PM AKDT (22:30 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.8 224 km SE of Chiniak, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 3.6 (ml), minor
Local time: Fri, Jun 15, 2018, 2:30 PM AKDT
UTC: 2018-06-15 22:30:22 UTC
Depth: 8.1 km (5.1 mi), shallow
Epicenter: 55.691° N, 149.296° 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.

Location uncertainty: About 8.6 km horizontally, 7.9 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 208°, poorly surrounded by stations
Stations used: 103

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and at least 200 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 us1000esy2 (also filed as ak19771703, aacse0187mwhmvb, ak0187mwhmvb). Read Thu, Sep 24, 2026, 1:05 PM UTC.