M2.6 earthquake 56 km WNW of Nanwalek, Alaska

A magnitude 2.6 earthquake struck 56 km WNW of Nanwalek, Alaska on Sun, Oct 20, 2024, 4:05 AM AKDT (12:05 UTC), 74 km (46 mi) below the surface.

A larger quake followed: M3.5 56 km ENE of Pedro Bay, 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
2.9	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.033 · 122 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: at least 202 in the 60 days after this one and at least 200 in the 30 days before it.

The first 60 of at least 202.

From the USGS Earthquake Hazards Program and its partner networks, event ak024dif6dma (also filed as us6000nzvr). Read Fri, Oct 2, 2026, 4:49 PM UTC.