M3.5 earthquake 132 km SSE of Sand Point, Alaska

A magnitude 3.5 earthquake struck 132 km SSE of Sand Point, Alaska on Thu, Mar 21, 2024, 1:55 AM AKDT (09:55 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.9 120 km SE of King Cove, 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
3.5	ML, local (Richter)	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.115 · 10 stations
3.3	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: 123 in the 60 days after this one and 56 in the 30 days before it.

The first 60 of 123.

From the USGS Earthquake Hazards Program and its partner networks, event us6000mk8i (also filed as ak0243q47u2h). Read Thu, Oct 1, 2026, 7:36 AM UTC.