M2.7 earthquake 41 km SSW of Atka, Alaska

A magnitude 2.7 earthquake struck 41 km SSW of Atka, Alaska on Tue, Jun 10, 2025, 6:47 AM HADT (15:47 UTC), 66 km (41 mi) below the surface.

A larger quake followed: M5.0 57 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
2.7	ML, local (Richter)	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.128 · 8 stations
2.0	ML, local (Richter)	Alaska Earthquake Center	Preliminary

The USGS’s account of the effects of this earthquake.

From the USGS event page for us6000qljj. U.S. Geological Survey text and figures are in the public domain.

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

Within 100 km, magnitude 1.5 and up: 145 in the 60 days after this one and 78 in the 30 days before it.

The first 60 of 145.

From the USGS Earthquake Hazards Program and its partner networks, event us6000qljj (also filed as ak0257eiqks4). Read Fri, Oct 2, 2026, 4:44 AM UTC.