Alaska earthquakes

M2.7 earthquake 79 km W of Adak, Alaska

A magnitude 2.7 earthquake struck 79 km W of Adak, Alaska on Tue, Jan 28, 2020, 8:20 PM HAST (06:20 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.0 71 km WNW of Adak, Alaska. This one was a foreshock.

More in Alaska

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
2.7 (ml), micro
Local time
UTC
2020-01-29 06:20:55 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
51.855° N, 177.781° 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 1.5 km horizontally, 2.8 km in depth
Depth from
From location
Station coverage gap
108°
Stations used
23

Nearby

Within 100 km, magnitude 1.5 and up: at least 201 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of at least 201.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us60007p00 (also filed as av62130461, ak0201c2a2i4). Read Wed, Sep 30, 2026, 11:14 PM UTC.