M2.1 earthquake 6 km WNW of Ferry, Alaska

A magnitude 2.1 earthquake struck 6 km WNW of Ferry, Alaska on Fri, Aug 7, 2020, 8:49 PM AKDT (04:49 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M4.0 11 km NNE of Cantwell, 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
2.1	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
2.3	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.041 · 80 stations

2 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 77 in the 60 days after this one and 36 in the 30 days before it.

The first 60 of 77.

From the USGS Earthquake Hazards Program and its partner networks, event ak020a5kfzh3 (also filed as us6000bayr). Read Thu, Oct 1, 2026, 8:29 AM UTC.