Alaska earthquakes

M2.7 earthquake 102 km SW of Adak, Alaska

A magnitude 2.7 earthquake struck 102 km SW of Adak, Alaska on Thu, Jan 30, 2020, 7:31 AM HAST (17:31 UTC), 35 km (22 mi) below the surface.

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

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The earthquake

Magnitude
2.7 (ml), micro
Local time
UTC
2020-01-30 17:31:07 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
51.218° N, 177.665° 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 4.8 km horizontally, 2.0 km in depth
Depth from
Operator assigned
Station coverage gap
212°, poorly surrounded by stations
Stations used
26

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 us70007mt4 (also filed as ak0201dwffvk). Read Wed, Sep 30, 2026, 6:31 PM UTC.