Alaska earthquakes

M2.3 earthquake 50 km NNW of Atka, Alaska

A magnitude 2.3 earthquake struck 50 km NNW of Atka, Alaska on Thu, Jun 29, 2017, 4:44 PM HADT (01:44 UTC), 194 km (120 mi) below the surface.

A larger quake followed: M4.2 47 km NNW of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 2.3 (ML, local (Richter)), micro
Magnitude from: Alaska Earthquake Center
Local time: Thu, Jun 29, 2017, 4:44 PM HADT
UTC: 2017-06-30 01:44:57 UTC
Depth: 193.9 km (120.5 mi), intermediate-depth
Epicenter: 52.623° N, 174.459° 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

Nearby

Within 100 km, magnitude 1.5 and up: 44 in the 60 days after this one and 17 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0178bd4sxf (also filed as ak16241296). Read Sat, Oct 3, 2026, 10:06 AM UTC.