M3.0 earthquake 59 km ESE of Atka, Alaska

A magnitude 3.0 earthquake struck 59 km ESE of Atka, Alaska on Mon, Apr 7, 2025, 2:02 PM HADT (23:02 UTC), 65 km (40 mi) below the surface.

A larger quake followed: M4.8 46 km E of Atka, 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
3.0	ML, local (Richter)	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.097 · 14 stations
2.5	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: 102 in the 60 days after this one and 46 in the 30 days before it.

The first 60 of 102.

From the USGS Earthquake Hazards Program and its partner networks, event us7000pvm9 (also filed as ak0254gsu434). Read Sat, Oct 3, 2026, 6:47 AM UTC.