M4.3 earthquake 103 km ESE of Akutan, Alaska

A magnitude 4.3 earthquake struck 103 km ESE of Akutan, Alaska on Tue, Nov 14, 2023, 3:58 AM AKST (12:58 UTC), 44 km (27 mi) below the surface.

A larger quake followed: M4.6 150 km S of False Pass, 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
4.3	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.085 · 39 stations
4.2	mb, body-wave	Alaska Earthquake Center	Preliminary

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

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: 124 in the 60 days after this one and 61 in the 30 days before it.

The first 60 of 124.

From the USGS Earthquake Hazards Program and its partner networks, event us6000lnbi (also filed as ak023em4e0j6). Read Mon, Oct 5, 2026, 7:58 AM UTC.