Alaska earthquakes

M2.3 earthquake 224 km WSW of Adak, Alaska

A magnitude 2.3 earthquake struck 224 km WSW of Adak, Alaska on Sat, Apr 17, 2021, 2:37 PM HADT (23:37 UTC), 69 km (43 mi) below the surface.

A larger quake followed: M5.4 288 km WSW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.3 (ml), micro
Local time
UTC
2021-04-17 23:37:02 UTC
Depth
68.5 km (42.6 mi), shallow
Epicenter
50.948° N, 179.497° 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
19

Nearby

Within 100 km, magnitude 1.5 and up: 44 in the 60 days after this one and 15 in the 30 days before it.

After

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0214xcf1eq. Read Thu, Sep 24, 2026, 1:06 PM UTC.