Alaska earthquakes

M2.9 earthquake 179 km SSE of Adak, Alaska

A magnitude 2.9 earthquake struck 179 km SSE of Adak, Alaska on Fri, Jul 10, 2020, 11:36 AM HADT (20:36 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.4 120 km SSW of Atka, Alaska. This one was a foreshock.

Map

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The earthquake

Magnitude: 2.9 (ml), micro
Local time: Fri, Jul 10, 2020, 11:36 AM HADT
UTC: 2020-07-10 20:36:42 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 50.513° N, 175.252° 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.

Location uncertainty: About 6.5 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.12
Depth from: Operator assigned
Station coverage gap: 227°, poorly surrounded by stations
Stations used: 34

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 12 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 us7000apuk (also filed as ak0208tvb4ao). Read Tue, Sep 29, 2026, 6:22 AM UTC.