Alaska earthquakes

M4.6 earthquake 147 km SE of Chignik, Alaska

A magnitude 4.6 earthquake struck 147 km SE of Chignik, Alaska on Mon, Sep 11, 2017, 10:43 PM AKDT (06:43 UTC), 8 km (5 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: 4.6 (mb, body-wave), light
Magnitude from: Alaska Earthquake Center
Local time: Mon, Sep 11, 2017, 10:43 PM AKDT
UTC: 2017-09-12 06:43:43 UTC
Depth: 8.4 km (5.2 mi), shallow
Epicenter: 55.202° N, 157.063° 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	mb, body-wave	Alaska Earthquake Center	Preferred · Preliminary
4.6	mb, body-wave	USGS National Earthquake Information Center	Reviewed · ±0.068 · 64 stations

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used: 174

Nearest places

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

Sand Point, AlaskaPopulation 1,064. Forecast218 kmE

Nearby

Within 100 km, magnitude 1.6 and up: 10 in the 60 days after this one and 8 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 ak017bptveou (also filed as ak16820976, us2000aklk). Read Sun, Oct 4, 2026, 5:50 AM UTC.