Alaska earthquakes

M2.1 earthquake 66 km W of Happy Valley, Alaska

A magnitude 2.1 earthquake struck 66 km W of Happy Valley, Alaska on Thu, Sep 14, 2017, 10:58 AM AKDT (18:58 UTC), 108 km (67 mi) below the surface.

A larger quake followed: M4.8 68 km E of Port Alsworth, Alaska. This one was a foreshock.

Happy Valley forecast More in Alaska

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 2.1 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Thu, Sep 14, 2017, 10:58 AM AKDT
UTC: 2017-09-14 18:58:12 UTC
Depth: 108.3 km (67.3 mi), intermediate-depth
Epicenter: 60.039° N, 152.901° 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
2.1	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
2.1	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed

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: 59

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of at least 201.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak017btc6ga3 (also filed as ak16826576, us2000ardf). Read Sat, Oct 3, 2026, 8:31 AM UTC.