M4.1 earthquake 95 km SSE of Sand Point, Alaska

A magnitude 4.1 earthquake struck 95 km SSE of Sand Point, Alaska on Tue, Sep 30, 2025, 11:22 PM AKDT (07:22 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M4.7 102 km SSE 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
4.1	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.157 · 11 stations
3.9	ML, local (Richter)	Alaska Earthquake Center	Preliminary

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

1 person reported to the USGS what they felt.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 88 in the 60 days after this one and 57 in the 30 days before it.

The first 60 of 88.

From the USGS Earthquake Hazards Program and its partner networks, event us6000rdyd (also filed as ak025cl9jyj1). Read Fri, Oct 2, 2026, 3:20 AM UTC.