M2.6 earthquake 41 km NE of Ambler, Alaska

A magnitude 2.6 earthquake struck 41 km NE of Ambler, Alaska on Mon, Mar 22, 2021, 1:54 AM AKDT (09:54 UTC), 20 km (12 mi) below the surface.

A larger quake followed: M3.5 75 km NW of Ambler, 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
2.6	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
2.7	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.042 · 74 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: 28 in the 60 days after this one and 2 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event ak0213q47ouk (also filed as us7000dlk7). Read Fri, Oct 2, 2026, 5:05 AM UTC.