Alaska earthquakes

M1.5 earthquake 83 km SSE of Atka, Alaska

A magnitude 1.5 earthquake struck 83 km SSE of Atka, Alaska on Fri, Sep 25, 2020, 8:26 AM HADT (17:26 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M5.3 76 km SW of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.5 (ml), micro
Local time
UTC
2020-09-25 17:26:30 UTC
Depth
7.5 km (4.7 mi), shallow
Epicenter
51.475° N, 173.894° 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: 72 in the 60 days after this one and 35 in the 30 days before it.

After

The first 60 of 72.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020cd5ud31. Read Mon, Sep 28, 2026, 12:59 AM UTC.