M3.0 earthquake 40 km S of Sand Point, Alaska

A magnitude 3.0 earthquake struck 40 km S of Sand Point, Alaska on Sat, Dec 23, 2023, 12:11 AM AKST (09:11 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M3.8 42 km S of Sand Point, 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
3.0	ML, local (Richter)	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.115 · 10 stations
2.5	ML, local (Richter)	Alaska Earthquake Center	Preliminary

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: 158 in the 60 days after this one and 78 in the 30 days before it.

The first 60 of 158.

From the USGS Earthquake Hazards Program and its partner networks, event us6000m2ud (also filed as ak023geka7c6). Read Thu, Oct 1, 2026, 1:00 PM UTC.