Alaska earthquakes

M1.9 earthquake 32 km NE of Adak, Alaska

A magnitude 1.9 earthquake struck 32 km NE of Adak, Alaska on Wed, Mar 23, 2016, 1:58 AM HADT (10:58 UTC), 103 km (64 mi) below the surface.

A larger quake followed: M4.1 101 km ESE of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.9 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2016-03-23 10:58:14 UTC
Depth
102.7 km (63.8 mi), intermediate-depth
Epicenter
52.087° N, 176.300° 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
14

Nearby

Within 100 km, magnitude 1.5 and up: 117 in the 60 days after this one and 65 in the 30 days before it.

After

The first 60 of 117.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0163tfwlog (also filed as ak13172758). Read Sun, Oct 4, 2026, 5:35 PM UTC.