M2.6 earthquake 203 km ESE of Chiniak, Alaska

A magnitude 2.6 earthquake struck 203 km ESE of Chiniak, Alaska on Wed, Feb 22, 2023, 6:55 PM AKST (03:55 UTC), 22 km (13 mi) below the surface.

A larger quake followed: M3.8 277 km ESE of Chiniak, 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
2.6	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
2.6	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.064 · 32 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: 32 in the 60 days after this one and 8 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event ak0232hd4wxi (also filed as us7000jgny). Read Mon, Oct 5, 2026, 6:14 AM UTC.