M3.7 earthquake 16 km NE of Atka, Alaska

A magnitude 3.7 earthquake struck 16 km NE of Atka, Alaska on Sun, Nov 17, 2019, 10:57 PM HAST (08:57 UTC), 195 km (121 mi) below the surface.

A larger quake followed: M4.4 81 km SE of Atka, 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
3.7	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.206 · 6 stations
2.9	ML, local (Richter)	Alaska Earthquake Center	Preliminary

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

Within 100 km, magnitude 1.5 and up: 57 in the 60 days after this one and 40 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event us70006crf (also filed as ak019eso5k3w). Read Fri, Oct 2, 2026, 7:40 PM UTC.