M3.4 earthquake 121 km NW of Atka, Alaska

A magnitude 3.4 earthquake struck 121 km NW of Atka, Alaska on Tue, May 24, 2022, 3:08 AM HADT (12:08 UTC), 291 km (181 mi) below the surface.

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

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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
3.4	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.173 · 8 stations
2.8	ML, local (Richter)	Alaska Earthquake Center	Preliminary

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

Within 100 km, magnitude 1.5 and up: 89 in the 60 days after this one and 21 in the 30 days before it.

The first 60 of 89.

From the USGS Earthquake Hazards Program and its partner networks, event us7000htht (also filed as ak0226mckzqp). Read Fri, Oct 2, 2026, 4:31 PM UTC.