Alaska earthquakes

M4.7 earthquake 68 km NNE of Akutan, Alaska

A magnitude 4.7 earthquake struck 68 km NNE of Akutan, Alaska on Fri, Oct 12, 2018, 9:16 AM AKDT (17:16 UTC), 163 km (101 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: Fri, Oct 12, 2018, 9:16 AM AKDT
UTC: 2018-10-12 17:16:38 UTC
Depth: 162.9 km (101.2 mi), intermediate-depth
Epicenter: 54.699° N, 165.367° 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
4.7	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.046 · 145 stations
4.7	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 6.3 km horizontally, 2.7 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 82°
Stations used: 253

Nearest places

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

Akutan, AlaskaPopulation 1,040. Forecast68 kmNNE

Nearby

Within 100 km, magnitude 1.7 and up: 9 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 us1000hb7b (also filed as ak018d3mdsit, ak20279334). Read Thu, Oct 1, 2026, 8:47 PM UTC.