Alaska earthquakes

M2.4 earthquake 127 km S of Unalaska, Alaska

A magnitude 2.4 earthquake struck 127 km S of Unalaska, Alaska on Thu, Aug 11, 2016, 12:53 PM AKDT (20:53 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M4.6 120 km E of Nikolski, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
2.4 (ML, local (Richter)), micro
Magnitude from
Alaska Earthquake Center
Local time
UTC
2016-08-11 20:53:57 UTC
Depth
15.5 km (9.6 mi), shallow
Epicenter
52.732° N, 166.722° 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.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Stations used
23

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 70 in the 60 days after this one and 104 in the 30 days before it.

After

The first 60 of 70.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak016aaslw3l (also filed as ak13840560). Read Sun, Oct 4, 2026, 6:48 AM UTC.