Alaska earthquakes

M4.7 earthquake 83 km ENE of Nikolski, Alaska

A magnitude 4.7 earthquake struck 83 km ENE of Nikolski, Alaska on Sat, Nov 11, 2017, 7:14 AM AKST (16:14 UTC), 68 km (42 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: 4.7 (mb, body-wave), light
Magnitude from: USGS National Earthquake Information Center
Local time: Sat, Nov 11, 2017, 7:14 AM AKST
UTC: 2017-11-11 16:14:14 UTC
Depth: 67.6 km (42.0 mi), shallow
Epicenter: 53.184° N, 167.690° W
Region: Alaska
Felt reports: 1
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
4.7	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.046 · 142 stations
4.7	mb, body-wave	Alaska Earthquake Center	Preliminary

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 5.4 km horizontally, 5.5 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 93°
Stations used: 111

Nearest places

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

Unalaska, AlaskaPopulation 4,491. Forecast108 kmSW

Nearby

Within 100 km, magnitude 1.7 and up: 66 in the 60 days after this one and 36 in the 30 days before it.

After

The first 60 of 66.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000bm2q (also filed as ak17181672, ak017eh7wafc). Read Thu, Oct 1, 2026, 1:48 PM UTC.