M2.3 earthquake 67 km SW of Adak, Alaska

A magnitude 2.3 earthquake struck 67 km SW of Adak, Alaska on Fri, Jan 30, 2026, 6:59 PM HAST (04:59 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M4.6 137 km SW of Adak, 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
2.3	ML, local (Richter)	Alaska Earthquake Center	Preferred · Reviewed · ±0.2 · 11 stations
1.75	ML, local (Richter)	AV	Final · ±0.30317736934691 · 13 stations

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

Within 100 km, magnitude 1.5 and up: 181 in the 60 days after this one and 76 in the 30 days before it.

The first 60 of 181.

From the USGS Earthquake Hazards Program and its partner networks, event ak2026cdlsnw (also filed as av94017611). Read Thu, Oct 1, 2026, 9:17 PM UTC.