Alaska earthquakes

M2.5 earthquake 73 km WSW of Unalaska, Alaska

A magnitude 2.5 earthquake struck 73 km WSW of Unalaska, Alaska on Wed, Feb 12, 2020, 9:06 AM AKST (18:06 UTC), 102 km (64 mi) below the surface.

A larger quake followed: M4.8 35 km SE of Unalaska, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
2.5 (ml), micro
Local time
UTC
2020-02-12 18:06:13 UTC
Depth
102.3 km (63.6 mi), intermediate-depth
Epicenter
53.602° N, 167.547° 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 11.9 km horizontally, 3.7 km in depth
Magnitude uncertainty
±0.15
Depth from
From location
Station coverage gap
173°
Stations used
19

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 33 in the 60 days after this one and 13 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70007w97 (also filed as ak0201zev1dy). Read Tue, Sep 29, 2026, 10:48 PM UTC.