Alaska earthquakes

M1.9 earthquake 238 km WSW of Adak, Alaska

A magnitude 1.9 earthquake struck 238 km WSW of Adak, Alaska on Sun, Sep 6, 2020, 1:41 PM HADT (22:41 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.8 193 km WSW of Adak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
1.9 (ml), micro
Local time
UTC
2020-09-06 22:41:03 UTC
Depth
10.3 km (6.4 mi), shallow
Epicenter
50.931° N, 179.718° 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
16

Nearby

Within 100 km, magnitude 1.5 and up: 103 in the 60 days after this one and 63 in the 30 days before it.

After

The first 60 of 103.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020bhtp3f3. Read Tue, Sep 29, 2026, 12:46 AM UTC.