Alaska earthquakes

M2.9 earthquake 49 km WSW of Atka, Alaska

A magnitude 2.9 earthquake struck 49 km WSW of Atka, Alaska on Fri, Feb 9, 2024, 1:23 AM HAST (11:23 UTC), 155 km (96 mi) below the surface.

A larger quake followed: M4.6 94 km SW of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.9 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2024-02-09 11:23:15 UTC
Depth
155.0 km (96.3 mi), intermediate-depth
Epicenter
51.978° N, 174.826° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
2.9ML, local (Richter)USGS National Earthquake Information CenterPreferred · Reviewed · ±0.091 · 16 stations
2.4ML, local (Richter)Alaska Earthquake CenterPreliminary

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 14.6 km horizontally, 8.2 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
202°, poorly surrounded by stations
Stations used
17

Nearby

Within 100 km, magnitude 1.5 and up: 148 in the 60 days after this one and 34 in the 30 days before it.

After

The first 60 of 148.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000mfm9 (also filed as ak0241uc6lct). Read Thu, Oct 1, 2026, 11:38 PM UTC.