M3.6 earthquake 20 km WSW of Glacier View, Alaska

A magnitude 3.6 earthquake struck 20 km WSW of Glacier View, Alaska on Sat, Nov 21, 2020, 8:20 AM AKST (17:20 UTC), 35 km (22 mi) below the surface.

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
3.6	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
4.0	mb, body-wave	USGS National Earthquake Information Center	Reviewed · ±0.299 · 4 stations

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

6 people reported to the USGS what they felt; the strongest reported shaking was IV, light 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: 140 in the 60 days after this one and 72 in the 30 days before it.

The first 60 of 140.

From the USGS Earthquake Hazards Program and its partner networks, event ak020ezffvom (also filed as us6000cr9j). Read Fri, Oct 2, 2026, 2:47 PM UTC.