Alaska earthquakes

M2.3 earthquake 73 km SSW of Adak, Alaska

A magnitude 2.3 earthquake struck 73 km SSW of Adak, Alaska on Sun, Oct 7, 2018, 8:45 AM HADT (17:45 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M4.7 128 km SW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.3 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2018-10-07 17:45:23 UTC
Depth
16.0 km (9.9 mi), shallow
Epicenter
51.271° N, 177.052° 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
15

Nearby

Within 100 km, magnitude 1.5 and up: 167 in the 60 days after this one and 125 in the 30 days before it.

After

The first 60 of 167.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak018cvcv8k3 (also filed as ak20272985). Read Thu, Oct 1, 2026, 5:47 PM UTC.