Alaska earthquakes

M1.5 earthquake 43 km SSE of Unalaska, Alaska

A magnitude 1.5 earthquake struck 43 km SSE of Unalaska, Alaska on Sat, Jul 22, 2017, 1:19 AM AKDT (09:19 UTC), 56 km (35 mi) below the surface.

A larger quake followed: M4.8 37 km ESE of Akutan, 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
1.5 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2017-07-22 09:19:09 UTC
Depth
56.3 km (35.0 mi), shallow
Epicenter
53.495° N, 166.374° 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
15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 132 in the 60 days after this one and 60 in the 30 days before it.

After

The first 60 of 132.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0179bvkg0l (also filed as ak16361917). Read Fri, Oct 2, 2026, 7:00 PM UTC.