M2.4 earthquake 121 km SSE of Yakutat, Alaska

A magnitude 2.4 earthquake struck 121 km SSE of Yakutat, Alaska on Tue, Oct 19, 2021, 10:41 AM AKDT (18:41 UTC), 19 km (12 mi) below the surface.

A larger quake followed: M2.7 187 km S of Yakutat, 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
3.0	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.052 · 48 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: 16 in the 60 days after this one and 6 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event ak021df7vz6r (also filed as us6000g9md). Read Sat, Oct 3, 2026, 2:34 PM UTC.