Alaska earthquakes

M2.8 earthquake 270 km WSW of Adak, Alaska

A magnitude 2.8 earthquake struck 270 km WSW of Adak, Alaska on Mon, May 25, 2020, 12:13 AM GMT+12 (12:13 UTC), 58 km (36 mi) below the surface.

A larger quake followed: M4.2 295 km W of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 2.8 (ml), micro
Local time: Mon, May 25, 2020, 12:13 AM GMT+12
UTC: 2020-05-24 12:13:22 UTC
Depth: 58.0 km (36.0 mi), shallow
Epicenter: 51.442° N, 179.514° E
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 11.2 km horizontally, 28.1 km in depth
Magnitude uncertainty: ±0.13
Depth from: From location
Station coverage gap: 161°
Stations used: 48

Nearby

Within 100 km, magnitude 1.5 and up: 132 in the 60 days after this one and 50 in the 30 days before it.

After

The first 60 of 132.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000a637 (also filed as ak0206o05cw9). Read Tue, Sep 29, 2026, 9:53 PM UTC.