Alaska earthquakes

M1.7 earthquake 250 km WSW of Adak, Alaska

A magnitude 1.7 earthquake struck 250 km WSW of Adak, Alaska on Tue, Sep 8, 2020, 5:51 AM GMT+12 (17:51 UTC), 70 km (43 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
1.7 (ml), micro
Local time
UTC
2020-09-07 17:51:52 UTC
Depth
69.9 km (43.4 mi), shallow
Epicenter
51.483° N, 179.795° 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.

Stations used
16

Nearby

Within 100 km, magnitude 1.5 and up: 129 in the 60 days after this one and 85 in the 30 days before it.

After

The first 60 of 129.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak020bjebitf. Read Mon, Sep 28, 2026, 2:28 AM UTC.