Alaska earthquakes

M2.9 earthquake 40 km SSE of False Pass, Alaska

A magnitude 2.9 earthquake struck 40 km SSE of False Pass, Alaska on Mon, Apr 19, 2021, 1:14 PM AKDT (21:14 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M3.5 100 km ESE 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
2.9 (ml), micro
Local time
UTC
2021-04-19 21:14:07 UTC
Depth
17.9 km (11.1 mi), shallow
Epicenter
54.499° N, 163.263° 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 4.1 km horizontally, 5.5 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
191°, poorly surrounded by stations
Stations used
26

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 48 in the 60 days after this one and 53 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000e391 (also filed as ak02150m5y1j). Read Wed, Sep 23, 2026, 6:46 PM UTC.