Alaska earthquakes

M3.0 earthquake 11 km N of Tanaina, Alaska

A magnitude 3.0 earthquake struck 11 km N of Tanaina, Alaska on Tue, Dec 27, 2016, 10:17 PM AKST (07:17 UTC), 35 km (21 mi) below the surface.

A larger quake followed: M3.3 23 km SSW of Susitna, Alaska. This one was a foreshock.

Tanaina 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: 3.0 (ML, local (Richter)), minor
Magnitude from: Alaska Earthquake Center
Local time: Tue, Dec 27, 2016, 10:17 PM AKST
UTC: 2016-12-28 07:17:40 UTC
Depth: 34.5 km (21.4 mi), shallow
Epicenter: 61.729° N, 149.456° W
Region: Alaska
Felt reports: 6
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
3.0	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
3.0	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed

What happened

The USGS’s account of the effects of this earthquake.

Felt at Anchorage, Chugiak, Eagle River and Fort Richardson.

From the USGS event page for ak016gogcqsp. U.S. Geological Survey text and figures are in the public domain.

Did you feel it?

6 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

How well it is located

Reviewed by a seismologist.

Stations used: 113

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 196 in the 60 days after this one and 106 in the 30 days before it.

After

The first 60 of 196.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak016gogcqsp (also filed as ak14807389, us10007n5h). Read Mon, Oct 5, 2026, 2:34 AM UTC.