Alaska earthquakes

M2.3 earthquake 27 km SSE of Adak, Alaska

A magnitude 2.3 earthquake struck 27 km SSE of Adak, Alaska on Fri, Mar 30, 2018, 2:24 AM HADT (11:24 UTC), 48 km (30 mi) below the surface.

A larger quake followed: M4.8 57 km ESE 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: Fri, Mar 30, 2018, 2:24 AM HADT
UTC: 2018-03-30 11:24:09 UTC
Depth: 47.7 km (29.6 mi), shallow
Epicenter: 51.660° N, 176.447° 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: 17

Nearby

Within 100 km, magnitude 1.5 and up: 52 in the 60 days after this one and 63 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak01843diti7 (also filed as ak18839160). Read Thu, Oct 1, 2026, 10:04 PM UTC.