Alaska earthquakes

M2.5 earthquake Alaska Peninsula

A magnitude 2.5 earthquake struck in the Alaska Peninsula on Sun, Jun 20, 2021, 1:38 PM AKDT (21:38 UTC), 20 km (12 mi) below the surface.

A larger quake followed: M2.7 88 km SSW of Sand Point, Alaska. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.5 (ml), micro
Local time
UTC
2021-06-20 21:38:03 UTC
Depth
20.0 km (12.5 mi), shallow
Epicenter
54.760° N, 162.585° 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.

Location uncertainty
About 3.2 km horizontally, 9.0 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
163°
Stations used
30

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 103 in the 60 days after this one and 17 in the 30 days before it.

After

The first 60 of 103.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000ef3e (also filed as av91286676). Read Wed, Sep 23, 2026, 12:31 PM UTC.