Alaska earthquakes

M4.4 earthquake 54 km NW of Atka, Alaska

A magnitude 4.4 earthquake struck 54 km NW of Atka, Alaska on Sat, Nov 19, 2016, 8:41 AM HAST (18:41 UTC), 150 km (93 mi) below the surface.

A larger quake followed: M5.0 37 km NW of Atka, Alaska. This one was a foreshock.

Map

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The earthquake

Magnitude: 4.4 (mb, body-wave), light
Magnitude from: USGS National Earthquake Information Center
Local time: Sat, Nov 19, 2016, 8:41 AM HAST
UTC: 2016-11-19 18:41:45 UTC
Depth: 149.6 km (93.0 mi), intermediate-depth
Epicenter: 52.511° N, 174.807° W
Region: Alaska
Tsunami flag: No
Status: Reviewed by a seismologist

Magnitude estimates

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
4.4	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.042 · 164 stations
4.4	mb, body-wave	Alaska Earthquake Center	Preliminary

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 8.7 km horizontally, 7.6 km in depth
Magnitude uncertainty: ±0.04
Depth from: From location
Station coverage gap: 148°
Stations used: 229

Nearby

Within 100 km, magnitude 1.5 and up: 24 in the 60 days after this one and 12 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10007alz (also filed as ak14367533, ak016ew534wb). Read Sat, Oct 3, 2026, 3:18 PM UTC.