Alaska earthquakes

M2.4 earthquake 104 km WNW of Adak, Alaska

A magnitude 2.4 earthquake struck 104 km WNW of Adak, Alaska on Sat, Jul 3, 2021, 1:22 PM HADT (22:22 UTC), 247 km (153 mi) below the surface.

A larger quake followed: M4.8 128 km WSW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.4 (ml), micro
Local time
UTC
2021-07-03 22:22:04 UTC
Depth
246.8 km (153.4 mi), intermediate-depth
Epicenter
52.185° N, 178.077° 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
29

Nearby

Within 100 km, magnitude 1.5 and up: 121 in the 60 days after this one and 27 in the 30 days before it.

After

The first 60 of 121.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0218go448x. Read Thu, Sep 24, 2026, 1:43 PM UTC.