M1.7 earthquake 86 km NNW of Karluk, Alaska

A magnitude 1.7 earthquake struck 86 km NNW of Karluk, Alaska on Thu, Jan 5, 2023, 4:30 AM AKST (13:30 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M4.5 Kodiak Island region, 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
1.59	ML, local (Richter)	AV	Final · ±0.351137372759147 · 18 stations

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

Distance and direction from each place to the epicenter, with its forecast.

Within 100 km, magnitude 1.5 and up: 175 in the 60 days after this one and 81 in the 30 days before it.

The first 60 of 175.

From the USGS Earthquake Hazards Program and its partner networks, event ak0238hluft (also filed as av91743176). Read Thu, Oct 1, 2026, 1:47 PM UTC.