M1.7 earthquake 141 km W of Adak, Alaska

A magnitude 1.7 earthquake struck 141 km W of Adak, Alaska on Tue, Feb 13, 2024, 6:07 PM HAST (04:07 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M3.7 93 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
1.7	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
1.21	ML, local (Richter)	AV	Final · ±0.224131964423699 · 11 stations

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

Within 100 km, magnitude 1.5 and up: 171 in the 60 days after this one and 73 in the 30 days before it.

The first 60 of 171.

From the USGS Earthquake Hazards Program and its partner networks, event ak02422hlxc7 (also filed as av92204831). Read Sun, Oct 4, 2026, 8:00 PM UTC.