M2.8 earthquake 23 km S of Susitna, Alaska

A magnitude 2.8 earthquake struck 23 km S of Susitna, Alaska on Thu, Jun 16, 2022, 12:27 PM AKDT (20:27 UTC), 50 km (31 mi) below the surface.

A larger quake followed: M4.8 14 km WNW of Point Possession, 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
2.8	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
3.0	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.029 · 154 stations

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

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: at least 199 in the 60 days after this one and 87 in the 30 days before it.

The first 60 of at least 199.

From the USGS Earthquake Hazards Program and its partner networks, event ak0227oitj4f (also filed as us7000hhyk). Read Fri, Oct 2, 2026, 9:44 AM UTC.