Alaska earthquakes

M3.3 earthquake 204 km SSE of Atka, Alaska

A magnitude 3.3 earthquake struck 204 km SSE of Atka, Alaska on Sat, Jan 18, 2020, 5:25 PM HAST (03:25 UTC), 10 km (6 mi) below the surface.

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The earthquake

Magnitude: 3.3 (ml), minor
Local time: Sat, Jan 18, 2020, 5:25 PM HAST
UTC: 2020-01-19 03:25:33 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 50.597° N, 172.740° 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 3.4 km horizontally, 1.9 km in depth
Magnitude uncertainty: ±0.10
Depth from: Operator assigned
Station coverage gap: 207°, poorly surrounded by stations
Stations used: 26

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 2 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us60007k6p (also filed as ak020vh5bsf). Read Wed, Sep 30, 2026, 11:16 PM UTC.