Alaska earthquakes

M4.7 earthquake 70 km ESE of Sand Point, Alaska

A magnitude 4.7 earthquake struck 70 km ESE of Sand Point, Alaska on Mon, Sep 2, 2019, 9:39 PM AKDT (05:39 UTC), 26 km (16 mi) below the surface.

Sand Point forecast More in Alaska

Map

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

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The earthquake

Magnitude: 4.7 (mww), light
Local time: Mon, Sep 2, 2019, 9:39 PM AKDT
UTC: 2019-09-03 05:39:29 UTC
Depth: 25.6 km (15.9 mi), shallow
Epicenter: 55.093° N, 159.469° W
Region: Alaska
Tsunami flag: No
Status: Reviewed by a seismologist

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: Strike-slip
Moment magnitude: 4.7 Mww
Nodal plane 1: Strike 199°, dip 70°, rake -10°
Nodal plane 2: Strike 292°, dip 81°, rake -159°

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 4.2 km horizontally, 4.5 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 87°
Stations used: 103

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast71 kmESE

Nearby

Within 100 km, magnitude 1.7 and up: 33 in the 60 days after this one and 24 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 us70005bct (also filed as ak019baxeyow). Read Tue, Sep 29, 2026, 12:13 PM UTC.