M2.4 earthquake Central Alaska

A magnitude 2.4 earthquake struck in Central Alaska on Mon, Apr 27, 2020, 10:06 PM AKDT (06:06 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M3.4 57 km N of Petersville, 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
2.6	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.032 · 130 stations

1 person reported to the USGS what they felt; the strongest reported shaking was II, 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: 138 in the 60 days after this one and 90 in the 30 days before it.

The first 60 of 138.

From the USGS Earthquake Hazards Program and its partner networks, event ak0205gwk6pm (also filed as us60009dri). Read Sat, Oct 3, 2026, 2:21 PM UTC.