Alaska earthquakes

M4.6 earthquake 92 km S of Sand Point, Alaska

A magnitude 4.6 earthquake struck 92 km S of Sand Point, Alaska on Wed, Nov 23, 2016, 1:15 PM AKST (22:15 UTC), 29 km (18 mi) below the surface.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 4.6 (Mwr, regional moment), light
Magnitude from: USGS National Earthquake Information Center
Local time: Wed, Nov 23, 2016, 1:15 PM AKST
UTC: 2016-11-23 22:15:37 UTC
Depth: 29.2 km (18.2 mi), shallow
Epicenter: 54.513° N, 160.724° 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
4.6	Mwr, regional moment	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.069 · 20 stations
4.6	Mw, moment	Alaska Earthquake Center	Preliminary

Did you feel it?

No one has reported feeling this quake to the USGS.

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting: Reverse (thrust)
Moment magnitude: 4.6 Mwr
Nodal plane 1: Strike 52°, dip 88°, rake 96°
Nodal plane 2: Strike 158°, dip 6°, rake 17°

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 3.8 km horizontally, 4.7 km in depth
Magnitude uncertainty: ±0.07
Depth from: From location
Station coverage gap: 125°
Stations used: 225

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Sand Point, AlaskaPopulation 1,064. Forecast93 kmS

Nearby

Within 100 km, magnitude 1.6 and up: 52 in the 60 days after this one and 20 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 us10007bxa (also filed as ak14398313, ak016f2tgnxc). Read Sun, Oct 4, 2026, 7:35 AM UTC.