Alaska earthquakes

M4.3 earthquake 206 km S of False Pass, Alaska

A magnitude 4.3 earthquake struck 206 km S of False Pass, Alaska on Tue, Dec 27, 2016, 5:03 AM AKST (14:03 UTC), 10 km (6 mi) below the surface.

Akutan 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: 4.3 (mb, body-wave), light
Magnitude from: USGS National Earthquake Information Center
Local time: Tue, Dec 27, 2016, 5:03 AM AKST
UTC: 2016-12-27 14:03:21 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 53.018° N, 162.933° W
Region: Alaska
Felt reports: 2
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
4.3	mb, body-wave	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.073 · 53 stations
4.3	mb, body-wave	Alaska Earthquake Center	Preliminary

Did you feel it?

2 people reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 8.0 km horizontally, 1.9 km in depth
Magnitude uncertainty: ±0.07
Depth from: Operator assigned
Station coverage gap: 165°
Stations used: 141

Nearest places

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

Akutan, AlaskaPopulation 1,040. Forecast225 kmESE

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 9 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 us10007n0w (also filed as ak14799304, ak016gmwwe85). Read Sun, Oct 4, 2026, 4:32 AM UTC.