M2.4 earthquake 133 km W of Elfin Cove, Alaska

A magnitude 2.4 earthquake struck 133 km W of Elfin Cove, Alaska on Sat, Feb 13, 2021, 11:20 PM AKST (08:20 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M3.3 99 km W of Elfin 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
2.4	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
2.5	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.048 · 56 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: 39 in the 60 days after this one and 1 in the 30 days before it.

2.598 km WSW of Elfin Cove, AlaskaTue, Jan 26, 2:26 AM AKST · 2074 days ago · 4 km deep · 43 km away

From the USGS Earthquake Hazards Program and its partner networks, event ak02122k2lba (also filed as us6000dhk5). Read Thu, Oct 1, 2026, 5:52 PM UTC.