Alaska earthquakes

M3.0 earthquake 160 km S of False Pass, Alaska

A magnitude 3.0 earthquake struck 160 km S of False Pass, Alaska on Fri, Oct 30, 2020, 4:43 AM AKDT (12:43 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.4 84 km SE of Akutan, 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
3.0 (ml), minor
Local time
UTC
2020-10-30 12:43:51 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
53.414° N, 163.606° 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 3.6 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.13
Depth from
Operator assigned
Station coverage gap
240°, poorly surrounded by stations
Stations used
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 70 in the 60 days after this one and 36 in the 30 days before it.

After

The first 60 of 70.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000c8g5 (also filed as ak020dyys50p). Read Fri, Sep 25, 2026, 2:06 PM UTC.