Alaska earthquakes

M2.8 earthquake 62 km NNE of Atka, Alaska

A magnitude 2.8 earthquake struck 62 km NNE of Atka, Alaska on Mon, May 23, 2022, 5:13 AM HADT (14:13 UTC), 174 km (108 mi) below the surface.

A larger quake followed: M5.3 Andreanof Islands, Aleutian Islands, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 2.8 (ML, local (Richter)), micro
Magnitude from: USGS National Earthquake Information Center
Local time: Mon, May 23, 2022, 5:13 AM HADT
UTC: 2022-05-23 14:13:02 UTC
Depth: 174.3 km (108.3 mi), intermediate-depth
Epicenter: 52.736° N, 173.970° W
Region: Alaska
Tsunami flag: No
Status: Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
2.8	ML, local (Richter)	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.115 · 10 stations
2.5	ML, local (Richter)	Alaska Earthquake Center	Preliminary

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 20.4 km horizontally, 13.6 km in depth
Magnitude uncertainty: ±0.12
Depth from: From location
Station coverage gap: 176°
Stations used: 17

Nearby

Within 100 km, magnitude 1.5 and up: 131 in the 60 days after this one and 34 in the 30 days before it.

After

The first 60 of 131.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000hs5n (also filed as ak0226kq9il1). Read Sat, Oct 3, 2026, 10:55 AM UTC.