M2.4 earthquake 72 km ESE of Chiniak, Alaska

A magnitude 2.4 earthquake struck 72 km ESE of Chiniak, Alaska on Wed, Mar 15, 2023, 1:18 AM AKDT (09:18 UTC), 29 km (18 mi) below the surface.

A larger quake followed: M3.7 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
2.4	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
2.5	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.056 · 42 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: 19 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 ak0233ej8j45 (also filed as us7000jm2w). Read Fri, Oct 2, 2026, 3:33 PM UTC.