Alaska earthquakes

M1.9 earthquake 82 km SSE of Port Graham, Alaska

A magnitude 1.9 earthquake struck 82 km SSE of Port Graham, Alaska on Sun, Aug 6, 2017, 12:48 AM AKDT (08:48 UTC), 39 km (24 mi) below the surface.

A larger quake followed: M4.0 38 km WSW of Nanwalek, Alaska. This one was a foreshock.

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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
1.9 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2017-08-06 08:48:47 UTC
Depth
39.0 km (24.2 mi), shallow
Epicenter
58.678° N, 151.221° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

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
34

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 50 in the 60 days after this one and 20 in the 30 days before it.

After

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak017a0o7ii6 (also filed as ak16457023). Read Mon, Oct 5, 2026, 3:02 AM UTC.